STD - 6th Test No.01

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  • 1/50 Questions

    Which are the main factors important for sustaining the life on the earth?

    • Air
    • Water
    • Land
    • All above
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About This Quiz

This quiz for 6th standard students tests knowledge on earth's composition, natural resources, and factors sustaining life, focusing on land and water distribution.

STD - 6th Test No.01 - Quiz

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  • 2. 

    How much percentage of the earth is occupied by land?

    • 29%

    • 71%

    • 49%

    • 39%

    Correct Answer
    A. 29%
    Explanation
    Approximately 29% of the Earth's surface is occupied by land. This means that about one-third of the Earth's total area is made up of landmasses such as continents and islands, while the remaining percentage is covered by water bodies like oceans, seas, and lakes. This distribution of land and water on our planet is important for various ecological processes, climate patterns, and the existence of diverse habitats for life forms.

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  • 3. 

    How much percentage of the earth is occupied by water?

    • 29%

    • 71%

    • 39%

    • 42%

    Correct Answer
    A. 71%
    Explanation
    Approximately 71% of the Earth's surface is covered by water. This includes the oceans, seas, lakes, rivers, and other bodies of water. The Earth's water is distributed in various forms such as liquid, vapor, and ice. This vast amount of water plays a crucial role in regulating the Earth's climate, supporting diverse ecosystems, and providing a habitat for countless species.

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  • 4. 

    Who fulfill our basic needs on the earth?

    • God

    • Man

    • Natural resources

    • Space

    Correct Answer
    A. Natural resources
    Explanation
    Natural resources fulfill our basic needs on the earth. They provide us with essential things like food, water, shelter, and energy. Without natural resources, it would be impossible for humans to survive and meet their basic needs.

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  • 5. 

    The living things and parts of the earth are occupy by the.........

    • Hydrosphere

    • Atmosphere

    • Lithosphere

    • All above

    Correct Answer
    A. All above
    Explanation
    The correct answer is "All above" because living things and parts of the earth are occupied by the hydrosphere (water bodies), the atmosphere (air), and the lithosphere (land). This means that all of these components play a role in supporting and sustaining life on Earth.

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  • 6. 

    Which of the following sphere occupy large part of the earth?

    • Hydrosphere

    • Lithosphere

    • Both a and b

    • None of above

    Correct Answer
    A. Hydrosphere
    Explanation
    The correct answer is Hydrosphere. The hydrosphere refers to all the water on Earth, including oceans, lakes, rivers, groundwater, and even water vapor in the atmosphere. It covers a large part of the Earth's surface, with approximately 71% of the planet being covered in water. The lithosphere, on the other hand, refers to the solid outer layer of the Earth, which includes the crust and upper mantle. While the lithosphere is also significant, it does not occupy as large a part of the Earth as the hydrosphere. Therefore, the correct answer is the hydrosphere.

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  • 7. 

    Which sphere on the earth occupy less part than Hydrosphere?

    • Hydrosphere

    • Lithosphere

    • Both a and b

    • None of the above

    Correct Answer
    A. Lithosphere
    Explanation
    The lithosphere is the solid outer layer of the Earth, which includes the crust and the uppermost part of the mantle. It occupies less part than the hydrosphere, which refers to all the water on Earth, including oceans, lakes, rivers, and groundwater. Therefore, the lithosphere is the correct answer as it occupies a smaller portion of the Earth compared to the hydrosphere.

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  • 8. 

    Which gases are present in the atmosphere?

    • Nitrogen

    • Oxygen

    • Argon

    • All above

    Correct Answer
    A. All above
    Explanation
    The correct answer is "All above" because nitrogen, oxygen, and argon are all gases that are present in the atmosphere. Nitrogen makes up the majority of the atmosphere, while oxygen is essential for supporting life. Argon is a noble gas that is present in small amounts. Therefore, all three gases are indeed present in the atmosphere.

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  • 9. 

    Which of the following gas occupy large part of the atmosphere?

    • Argon

    • Carbon dioxide

    • Nitrogen

    • Oxygen

    Correct Answer
    A. Nitrogen
    Explanation
    Nitrogen is the correct answer because it occupies the largest part of the Earth's atmosphere. It makes up about 78% of the atmosphere, followed by oxygen at around 21%. Argon and carbon dioxide are present in much smaller amounts.

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  • 10. 

    Which of the following gas occupy small part of the atmosphere?

    • Carbon dioxide

    • Oxygen

    • Argon

    • Nitrogen

    Correct Answer
    A. Carbon dioxide
    Explanation
    Carbon dioxide is the correct answer because it is present in small amounts in the atmosphere, making up only about 0.04% of the total atmospheric gases. Oxygen, nitrogen, and argon, on the other hand, are the main components of the Earth's atmosphere, with nitrogen being the most abundant gas, followed by oxygen and then argon.

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  • 11. 

    What happen if we go higher and higher from the earth surface?

    • Amount of gases increases

    • Amount of gases decreases

    • No change in gases

    • Gases become harmfull

    Correct Answer
    A. Amount of gases decreases
    Explanation
    As we go higher and higher from the Earth's surface, the atmospheric pressure decreases. This decrease in pressure causes the gases in the atmosphere to become less dense, resulting in a decrease in the amount of gases present. Therefore, the correct answer is that the amount of gases decreases as we go higher from the Earth's surface.

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  • 12. 

    What is the use of Nitrogen to living things?

    • In airtight packing of foodstuffs.

    • Respiration

    • Producing food

    • Electric bulbs

    Correct Answer
    A. In airtight packing of foodstuffs.
    Explanation
    Nitrogen is used in airtight packing of foodstuffs to prevent spoilage and maintain freshness. It helps create an oxygen-free environment, which inhibits the growth of bacteria and other microorganisms that cause food to spoil. This is particularly important for perishable items like fruits, vegetables, and meat. By using nitrogen in packaging, the shelf life of food can be extended, ensuring that it remains safe and of high quality for a longer period of time.

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  • 13. 

    What is the use of Oxygen to living things?

    • Airships

    • Food production

    • Electric bulbs

    • Respiration

    Correct Answer
    A. Respiration
    Explanation
    Oxygen is essential for respiration in living things. During respiration, oxygen is taken in by cells and used to break down glucose and release energy. This process provides the necessary energy for various cellular activities, such as growth, movement, and reproduction. Without oxygen, living organisms would not be able to produce enough energy to survive. Therefore, respiration is the main use of oxygen in living things.

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  • 14. 

    What is the use of Carbon dioxide to living things?

    • Food production

    • Respiration

    • Electric bulbs

    • Airships

    Correct Answer
    A. Food production
    Explanation
    Carbon dioxide is essential for photosynthesis, a process in which plants convert sunlight, water, and carbon dioxide into glucose and oxygen. Glucose is a source of energy for plants and is used to produce other organic compounds necessary for growth and development. Therefore, carbon dioxide is crucial for food production in plants, which ultimately sustains all living things in the food chain.

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  • 15. 

    Which harmful substances are released in the air through by combustion of fuels?

    • Oxygen

    • Nitrogen

    • Carbon dioxide

    • Argon

    Correct Answer
    A. Carbon dioxide
    Explanation
    During the combustion of fuels, carbon dioxide is released into the air. Combustion is a chemical reaction that occurs when a fuel combines with oxygen to produce heat and light. In this process, carbon atoms from the fuel combine with oxygen atoms from the air, forming carbon dioxide (CO2) as a byproduct. Carbon dioxide is considered a harmful substance in large quantities because it is a greenhouse gas that contributes to global warming and climate change.

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  • 16. 

    How much percent of water on the earth is available for drinking?

    • 97%

    • 2.7%

    • 100%

    • 0.03%

    Correct Answer
    A. 0.03%
    Explanation
    Only 0.03% of the water on Earth is available for drinking. The majority of the Earth's water is in the form of saltwater in the oceans, which is not suitable for consumption. This limited availability of freshwater highlights the importance of conservation and efficient use of this precious resource.

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  • 17. 

    How much percent of water on the earth is not available for drinking?

    • 97%

    • 2.7%

    • 0.03%

    • 100%

    Correct Answer
    A. 97%
    Explanation
    Approximately 97% of the water on Earth is not available for drinking. This is because the majority of the Earth's water is in the form of saltwater in the oceans, which is not suitable for consumption. Only a small percentage of water, around 2.5%, is freshwater, and out of that, a significant portion is locked in ice caps and glaciers. Therefore, the amount of water that is actually available for drinking is relatively small compared to the total amount of water on Earth.

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  • 18. 

    How much percent of water on the earth is present in form of ice?

    • 97%

    • 2.7%

    • 0.03%

    • 100%

    Correct Answer
    A. 2.7%
    Explanation
    Approximately 2.7% of the water on Earth is present in the form of ice. This includes ice caps, glaciers, and icebergs. The majority of Earth's water, about 97%, is found in the oceans as saltwater. The remaining 0.03% is freshwater found in lakes, rivers, and underground sources.

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  • 19. 

    Which of the following activitys should we do to save the water?

    • Use water sparingly

    • Block water

    • Let percolate the water

    • All above

    Correct Answer
    A. All above
    Explanation
    The correct answer is "All above" because in order to save water, we should use it sparingly, block water from unnecessary wastage, and allow it to percolate into the ground to replenish groundwater sources. By doing all of these activities, we can effectively conserve and protect our water resources.

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  • 20. 

    It takes about a .................... years for a formation of  2.5 cm layer of a soil.

    • Hundred

    • Lakhs

    • Thousand

    • Ten

    Correct Answer
    A. Thousand
    Explanation
    It takes about a thousand years for a formation of a 2.5 cm layer of soil.

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  • 21. 

    In which of the following growth do not take place?

    • Cat

    • Man

    • Stone

    • Plants

    Correct Answer
    A. Stone
    Explanation
    Stones do not undergo growth as they are non-living and inanimate objects. Growth is a characteristic of living organisms, such as plants, animals, and humans. While plants, cats, and humans all exhibit growth throughout their lifespan, stones remain unchanged in size and structure.

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  • 22. 

    Which of following is necessary for growth of living things?

    • Air

    • Water

    • Shelther

    • Food

    Correct Answer
    A. Food
    Explanation
    Food is necessary for the growth of living things because it provides the essential nutrients and energy required for cellular processes and development. It is through the process of digestion and absorption that organisms obtain the necessary substances for growth and maintenance of their body. Food provides the building blocks for the synthesis of proteins, carbohydrates, and lipids, which are essential for growth, repair, and functioning of cells. Additionally, food also provides vitamins and minerals that are necessary for various physiological processes and overall health.

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  • 23. 

    Living things inhale which of following gas for respiration?

    • Oxygen

    • Carbon dioxide

    • Nitrogen

    • Argon

    Correct Answer
    A. Oxygen
    Explanation
    Living things inhale oxygen for respiration because oxygen is necessary for the process of cellular respiration, where energy is produced in the form of ATP. Oxygen is used by cells to break down glucose and release energy, while carbon dioxide is produced as a waste product. Nitrogen and argon are not involved in the process of respiration and are present in much smaller quantities in the Earth's atmosphere.

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  • 24. 

    Living things exhale which of following gas by respiration?

    • Oxygen

    • Nitrogen

    • Carbon dioxide

    • Argon

    Correct Answer
    A. Carbon dioxide
    Explanation
    Living things exhale carbon dioxide by respiration. During the process of respiration, oxygen is taken in and carbon dioxide is produced as a waste product. This carbon dioxide is then released into the atmosphere through exhalation. Oxygen is used by living organisms for various metabolic processes, while nitrogen is a major component of the air but is not directly involved in respiration. Argon is an inert gas and is not involved in respiration either. Therefore, the correct answer is carbon dioxide.

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  • 25. 

    Which substances are formed during processes of digestion?

    • Useful

    • Waste

    • Harmful

    • Both b and c

    Correct Answer
    A. Both b and c
    Explanation
    During the processes of digestion, both useful substances and waste substances are formed. Useful substances include nutrients such as carbohydrates, proteins, and fats that are broken down and absorbed by the body for energy and growth. Waste substances, on the other hand, include indigestible materials, toxins, and byproducts of metabolism that need to be eliminated from the body. Harmful substances can also be formed during digestion, such as certain toxins or chemicals that may be present in the food or produced during the breakdown of certain compounds. Therefore, the correct answer is "Both b and c."

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  • 26. 

    The living things made of a single cell are called ................

    • Unicellular

    • Multicellular

    • Both a and b

    • None of above

    Correct Answer
    A. Unicellular
    Explanation
    Living things made of a single cell are referred to as unicellular. This means that their entire body is composed of just one cell, which carries out all the necessary functions for survival. Examples of unicellular organisms include bacteria, protozoa, and some types of algae. Multicellular organisms, on the other hand, are made up of multiple cells that work together to form tissues, organs, and systems. Therefore, the correct answer is unicellular.

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  • 27. 

    The living things made of a many cells are called ................

    • Unicellular

    • Multicellular

    • Both a and b

    • None of the above

    Correct Answer
    A. Multicellular
    Explanation
    Living things made of many cells are called multicellular. This term refers to organisms that are composed of multiple cells working together to perform various functions. Multicellular organisms can range from simple organisms like sponges to complex organisms like humans. These organisms have specialized cells that are organized into tissues, organs, and systems, allowing for a higher level of complexity and specialization compared to unicellular organisms.

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  • 28. 

    The animals like mosquitoes and flies are ................... animals

    • Useful

    • Harmful

    • Both a and b

    • None of the above

    Correct Answer
    A. Harmful
    Explanation
    The animals like mosquitoes and flies are harmful because they are known to carry and transmit diseases to humans and animals. Mosquitoes are vectors for diseases such as malaria, dengue fever, and Zika virus, while flies can spread diseases like cholera and typhoid. Additionally, both mosquitoes and flies can be a nuisance, causing irritation and discomfort with their bites. Therefore, their presence is generally considered harmful to human health and well-being.

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  • 29. 

    The animals like buffalos and cow are ................... animals

    • Harmful

    • Useful

    • Both a and b

    • None of above

    Correct Answer
    A. Useful
    Explanation
    Buffalos and cows are considered useful animals because they provide various benefits to humans. They are commonly domesticated for their milk, meat, and leather. Additionally, they are used for agricultural purposes, such as plowing fields and carrying heavy loads. These animals also contribute to the economy through the production of dairy products and meat. Therefore, the correct answer is "Useful".

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  • 30. 

    Plants which make their own food are called.....

    • Heterotrophic

    • Autotrophic

    • Insectivores

    • None of above

    Correct Answer
    A. Autotrophic
    Explanation
    Autotrophic plants are capable of producing their own food through the process of photosynthesis. They use sunlight, water, and carbon dioxide to synthesize glucose and release oxygen as a byproduct. This ability to self-feed distinguishes them from heterotrophic plants, which rely on obtaining nutrients from external sources. Insectivores, on the other hand, are organisms that consume insects for their nutrition. Therefore, the correct answer is Autotrophic.

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  • 31. 

    Plants use other plants for food are called.......

    • Autotrophic

    • Insectivores

    • Heterotrophic

    • None of above

    Correct Answer
    A. Heterotrophic
    Explanation
    Plants that use other plants for food are called heterotrophic. Heterotrophic plants obtain nutrients by parasitizing or living off other plants. Unlike autotrophic plants, which can produce their own food through photosynthesis, heterotrophic plants rely on external sources for their nutrition. Insectivores, on the other hand, are organisms that consume insects as their food source. Therefore, the correct answer is heterotrophic.

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  • 32. 

    Plants which consume insect are called......

    • Insectivores

    • Herbivorous

    • Autotrophic

    • None of above

    Correct Answer
    A. Insectivores
    Explanation
    Plants that consume insects are called insectivores. This is because they obtain nutrients by trapping and digesting insects. Insectivorous plants have evolved various mechanisms to attract, capture, and digest insects, such as sticky traps, pitcher-like structures, or digestive enzymes. These plants usually grow in nutrient-poor environments, where they supplement their diet by consuming insects to obtain essential nutrients like nitrogen and phosphorus. Therefore, the term "insectivores" accurately describes plants that feed on insects.

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  • 33. 

    Which are the parts of plants?

    • Stem

    • Flower

    • Leaf

    • All above

    Correct Answer
    A. All above
    Explanation
    The correct answer is "All above" because all of the listed options (stem, flower, and leaf) are parts of plants. The stem provides support and transportation of nutrients, the flower is the reproductive structure, and the leaf is responsible for photosynthesis. Therefore, all of these options are correct in identifying parts of plants.

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  • 34. 

    The plants which bears flowers and fruits for many are called.....

    • Shrubs

    • Herbs

    • Perennial

    • Vines

    Correct Answer
    A. Perennial
    Explanation
    Perennial plants are the correct answer because they are known for their ability to bear flowers and fruits for many years. Unlike annuals, which complete their life cycle in one year, perennials can live for multiple years, continuously producing flowers and fruits. This makes them a popular choice for gardeners who want long-lasting and reliable plants in their landscapes. Shrubs, herbs, and vines can also bear flowers and fruits, but they may not necessarily do so consistently over many years like perennials do.

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  • 35. 

    Some plants grow close to ground are called....

    • Shrubs

    • Perennial

    • Vines

    • Herbs

    Correct Answer
    A. Shrubs
    Explanation
    Shrubs are plants that have woody stems and grow relatively close to the ground. They are characterized by their shorter height and bushy appearance. Unlike trees, shrubs have multiple stems and do not grow as tall. They are often used as decorative plants in gardens and landscaping due to their compact size and ability to fill in spaces. Therefore, the correct answer for the given question is "Shrubs."

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  • 36. 

    Some plants grow 1 to 1.5 metres tall are called.....

    • Vines

    • Herbs

    • Shrubs

    • Perennial

    Correct Answer
    A. Herbs
    Explanation
    Plants that grow 1 to 1.5 meters tall are called herbs. Herbs are a type of plant that typically have soft, non-woody stems and are known for their culinary, medicinal, or aromatic properties. They are often used in cooking, herbal remedies, and for fragrance. Unlike shrubs or vines, which have different growth patterns and characteristics, herbs are generally shorter in height and have a different overall structure. Therefore, the correct answer is herbs.

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  • 37. 

    Some plants grow with support are called.......

    • Herbs

    • Perennial

    • Shrubs

    • Vines

    Correct Answer
    A. Vines
    Explanation
    Vines are plants that grow with support, typically by climbing or trailing along other structures. They have specialized structures such as tendrils or twining stems that allow them to attach themselves to surfaces and grow upwards. Unlike herbs, which are small, non-woody plants, and perennials, which are plants that live for more than two years, vines have a unique growth habit that sets them apart. Shrubs, on the other hand, are woody plants that have multiple stems and are generally shorter than trees. Therefore, the correct answer for plants that grow with support is vines.

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  • 38. 

    Lifecycle of plants complete in one year are called......

    • Annual

    • Biennial

    • Perennial

    • None of above

    Correct Answer
    A. Annual
    Explanation
    Plants whose lifecycle completes in one year are called annuals. These plants germinate, grow, flower, produce seeds, and die within a span of one year. They typically have a rapid growth rate and complete their entire life cycle in a single growing season. After producing seeds, the plant dies, and the next generation grows from these seeds. Annual plants are commonly used in gardening and agriculture for their ability to provide quick and abundant blooms or harvests.

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  • 39. 

    Lifecycle of plants complete in two years are called........

    • Annual

    • Perennial

    • Biennial

    • None of above

    Correct Answer
    A. Annual
    Explanation
    Plants whose lifecycle completes in two years are called biennial. Annual plants complete their lifecycle in one year, while perennial plants live for more than two years.

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  • 40. 

    Life cycle of plants complete in many years are called........

    • Annual

    • Biennial

    • Perennial

    • None of above

    Correct Answer
    A. Perennial
    Explanation
    Plants that complete their life cycle over many years are called perennial. Unlike annual plants that complete their life cycle in one year and biennial plants that take two years, perennial plants can live for multiple years, often producing flowers and fruits repeatedly. They have the ability to survive through different seasons and continue to grow year after year. Some common examples of perennial plants include trees, shrubs, and certain types of flowers.

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  • 41. 

    Plants which bears flowers are called.......

    • Flowering plants

    • Non-flowering plants

    • Both a and b

    • None of above

    Correct Answer
    A. Flowering plants
    Explanation
    Flowering plants are the correct answer because they are the type of plants that produce flowers. Flowers are the reproductive structures of these plants, and they play a crucial role in the process of pollination and seed production. Non-flowering plants, on the other hand, do not produce flowers and reproduce through other means such as spores or cones. Therefore, the term "flowering plants" accurately describes the plants that bear flowers.

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  • 42. 

    Plants which do not bears flowers are called.....mm

    • Flowering plants

    • None flowering plant's

    • Both a and b

    • None of above

    Correct Answer
    A. None flowering plant's
    Explanation
    The correct answer is "None flowering plant's" because plants that do not produce flowers are referred to as non-flowering plants. This term is used to describe plants such as ferns, mosses, and algae that reproduce through spores or other methods instead of producing flowers and seeds.

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  • 43. 

    Animals with a vertebral column are called.....

    • Invertebrates animals

    • Vertebrates animals

    • Both a and b

    • None of above

    Correct Answer
    A. Vertebrates animals
    Explanation
    The correct answer is "Vertebrates animals" because animals with a vertebral column, also known as a backbone, are classified as vertebrates. Vertebrates include animals such as mammals, birds, reptiles, amphibians, and fish. In contrast, animals without a vertebral column are called invertebrates, which include insects, worms, mollusks, and crustaceans. Therefore, the correct answer is "Vertebrates animals" as it accurately describes animals with a vertebral column.

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  • 44. 

    Which of following is not a natural disasters?

    • Floods

    • Stroms

    • War

    • Earthquake

    Correct Answer
    A. War
    Explanation
    War is not considered a natural disaster because it is a man-made event, resulting from conflicts between nations or groups of people. Natural disasters, on the other hand, are caused by natural forces such as weather patterns, geological movements, or environmental factors. Floods, storms, and earthquakes are all examples of natural disasters, as they occur due to natural processes and phenomena. War, however, is a result of human actions and decisions, making it distinct from natural disasters.

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  • 45. 

    Which of the following is not a man-made disaster? 

    • Floods

    • Wars

    • Forest fire

    • Both b and c

    Correct Answer
    A. Floods
    Explanation
    Floods are not a man-made disaster because they are natural occurrences caused by excessive rainfall, overflowing rivers, or tsunamis. While human activities can contribute to the severity of floods, such as deforestation or improper land use, the occurrence of floods itself is not directly caused by human actions. On the other hand, wars and forest fires can be considered man-made disasters as they are caused by human actions and decisions.

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  • 46. 

    Which of following will you do after dog bite?

    • Wash a wound with potassium permanganate

    • Cover the wound with clean cloth

    • Get a doctor help

    • All above

    Correct Answer
    A. All above
    Explanation
    After a dog bite, it is important to take immediate action to prevent infection. Washing the wound with potassium permanganate helps to disinfect it and reduce the risk of infection. Covering the wound with a clean cloth helps to protect it from further contamination. Getting a doctor's help is crucial as they can assess the severity of the bite, administer any necessary treatment such as antibiotics or a tetanus shot, and provide guidance on further care. Therefore, all of the mentioned actions should be taken after a dog bite.

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  • 47. 

    Which types of effects is seen after Strom's?

    • Loss of life and property

    • Save life

    • Save property

    • Loss of sim card

    Correct Answer
    A. Loss of life and property
    Explanation
    After a storm, the most common types of effects that are seen are the loss of life and property. Storms can be destructive, causing damage to buildings, infrastructure, and natural surroundings. Additionally, storms can result in casualties and loss of life. Therefore, it is expected that the aftermath of a storm would involve the loss of both life and property.

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  • 48. 

    Which types of effects is seen after forest fires?

    • Loss of cars

    • Loss of houses

    • Burns of natural wealth

    • None of above

    Correct Answer
    A. Burns of natural wealth
    Explanation
    Forest fires can cause significant damage to the natural wealth present in the forest. This includes the burning of trees, plants, and other vegetation, leading to the loss of biodiversity and habitat for various species. The fire also destroys the organic matter in the soil, affecting its fertility and nutrient content. Additionally, forest fires can result in the release of harmful pollutants and greenhouse gases into the atmosphere, contributing to air pollution and climate change. Therefore, the correct answer is "Burns of natural wealth."

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  • 49. 

    What should we do on external bleeding?

    • Cut the body part

    • Put petrol on that part

    • Keep the body part above the level of the heart

    • All above

    Correct Answer
    A. Keep the body part above the level of the heart
    Explanation
    When someone is experiencing external bleeding, it is important to keep the affected body part above the level of the heart. This position helps to slow down the blood flow and reduce bleeding. By elevating the body part, gravity assists in preventing excessive blood loss and allows for better clotting. It is a simple yet effective measure that can be taken while waiting for medical help to arrive. Cutting the body part or applying petrol would not be appropriate or helpful in this situation.

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  • Current Version
  • Dec 12, 2024
    Quiz Edited by
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  • Oct 04, 2018
    Quiz Created by
    Vikas Pandit

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