Standard 6 Science Chapter-3

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Standard 6 Science Chapter-3 - Quiz

Std 6 science


Questions and Answers
  • 1. 

    Plant that bear flowers are called-------

    • A.

      Flowering plant

    • B.

      Non flowering plant

    • C.

      A Shrub

    • D.

      Option 4

    Correct Answer
    A. Flowering plant
    Explanation
    Plants that bear flowers are called flowering plants. This term refers to a specific group of plants that have the ability to produce flowers, which are reproductive structures that contain the plant's seeds. Flowering plants, also known as angiosperms, are the most diverse group of plants on Earth and include familiar plants such as roses, sunflowers, and daisies. They play a crucial role in ecosystems as they provide food and habitat for various organisms, and they also have significant economic and cultural importance for humans.

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  • 2. 

    Plant make their own food in sunlight called------

    • A.

      Autotrophic

    • B.

      Heterotrophic

    • C.

      Insectivorous

    • D.

      Option 4

    Correct Answer
    A. Autotrophic
    Explanation
    Plants have the ability to produce their own food through a process called photosynthesis. During photosynthesis, plants use sunlight, water, and carbon dioxide to produce glucose and oxygen. This ability to synthesize their own food is known as autotrophy. Therefore, the correct answer is autotrophic.

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  • 3. 

    The------- this is the most attractive part of plant

    • A.

      Stem

    • B.

      Leaf

    • C.

      Flower

    • D.

      Option 4

    Correct Answer
    C. Flower
    Explanation
    The flower is often considered the most attractive part of a plant because it is the reproductive structure that contains vibrant colors, unique shapes, and fragrances. Flowers are responsible for attracting pollinators such as bees, butterflies, and birds, which help in the process of pollination and fertilization. They play a crucial role in the plant's reproduction and are often visually appealing, making them the most attractive part of the plant.

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  • 4. 

    The------- hold the soil firmly and anchor the plant.

    • A.

      Fruit

    • B.

      Root

    • C.

      Stem

    • D.

      Option 4

    Correct Answer
    B. Root
    Explanation
    Roots hold the soil firmly and anchor the plant. They are responsible for absorbing water and nutrients from the soil, providing stability to the plant, and storing food reserves. Without roots, plants would not be able to survive as they would be unable to obtain the necessary resources for growth and development. Therefore, roots play a crucial role in the overall health and functioning of a plant.

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  • 5. 

    Seeds give rise to new-------

    • A.

      Plant

    • B.

      Flower

    • C.

      Fruit

    • D.

      Option 4

    Correct Answer
    A. Plant
    Explanation
    Seeds have the ability to germinate and develop into new plants. They contain all the necessary genetic information and nutrients to initiate growth and produce roots, stems, leaves, and eventually flowers and fruits. Therefore, the correct answer is "Plant."

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  • 6. 

    The snail is an aquatic animal.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The statement states that the snail is an aquatic animal, but this is incorrect. Snails are not aquatic animals, as they are known to be terrestrial creatures. They are commonly found in gardens, forests, and other land environments, not in water. Therefore, the correct answer is false.

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  • 7. 

    Amphibians can live in air and in water.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    Amphibians are cold-blooded vertebrates that are capable of living both on land and in water. They have adaptations that allow them to breathe through their skin and lungs, making them well-suited for both terrestrial and aquatic environments. Therefore, the statement that amphibians can live in air and water is true.

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  • 8. 

    The functions of the brain is well developed in vertebrate animal.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The statement is true because vertebrate animals have a well-developed brain. The brain is responsible for various functions such as processing sensory information, controlling movement, regulating body temperature, and facilitating learning and memory. Vertebrates, which include mammals, birds, reptiles, amphibians, and fish, have complex brains that allow them to exhibit higher cognitive abilities compared to invertebrates. Therefore, it can be concluded that the functions of the brain are well developed in vertebrate animals.

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  • 9. 

    The amoeba is a multicellular animal.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The statement is false because the amoeba is actually a unicellular organism, not a multicellular animal. Amoebas are simple, single-celled organisms that belong to the group of protists. They do not have specialized cells or tissues like multicellular animals do. Instead, they consist of a single cell that carries out all of the necessary functions for survival.

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  • 10. 

    Plant that bear flowers are called flowering plants.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Flowering plants are indeed plants that bear flowers. Flowers are the reproductive structures of flowering plants, and they are responsible for the production of seeds and fruits. The presence of flowers is a defining characteristic of flowering plants, distinguishing them from non-flowering plants such as ferns and mosses. Therefore, the statement that plants that bear flowers are called flowering plants is true.

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  • 11. 

    A) Mango b) banyan c)plam

    • A.

      Mango

    • B.

      Banyan

    • C.

      Plam

    • D.

      Option 4

    Correct Answer
    C. Plam
  • 12. 

    What is the process by which plants make their own food using sunlight, carbon dioxide, and water?

    • A.

      Respiration

    • B.

      Photosynthesis

    • C.

      Fermentation

    • D.

      Decomposition

    Correct Answer
    B. Photosynthesis
    Explanation
    Photosynthesis is the process by which plants use sunlight, carbon dioxide, and water to create their own food (glucose) and release oxygen as a byproduct. This process is vital for the growth and survival of plants and plays a crucial role in the Earth's ecosystem by producing oxygen and capturing carbon dioxide. Respiration (option A) is the process by which organisms release energy from food, while fermentation (option C) is a metabolic process in which sugars are converted into alcohol or acids. Decomposition (option D) involves the breakdown of organic matter by microorganisms.

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  • 13. 

    Which of the following is an example of a renewable source of energy?

    • A.

      Coal

    • B.

      Solar power

    • C.

      Natural gas

    • D.

      Nuclear energy

    Correct Answer
    B. Solar power
    Explanation
    Solar power is a renewable source of energy because it is derived from the sun's energy, which is continuously replenished. Solar panels convert sunlight into electricity, making it a sustainable and environmentally friendly energy source. In contrast, options A (coal), C (natural gas), and D (nuclear energy) are examples of non-renewable energy sources that are finite and have significant environmental impacts.

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  • 14. 

    A) radish b)Guava c) Carrot

    • A.

      Radish

    • B.

      Guava

    • C.

      Carrot

    • D.

      Option 4

    • E.

      Option 5

    Correct Answer
    B. Guava
    Explanation
    The correct answer is Guava because it is the only option given in the list of fruits. The other options, radish and carrot, are vegetables.

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  • 15. 

    A) Fish. b)man. C)Deer

    • A.

      Fish

    • B.

      Man

    • C.

      Deer

    • D.

      Option 4

    Correct Answer
    A. Fish

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  • Current Version
  • Oct 04, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Sep 30, 2020
    Quiz Created by
    Kalpesh Patil
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