Understanding The Hydrosphere And How Does IT Impact The Environment.

2.

About 70 percent of earth is covered by water?

False
True

Correct Answer

A. True

Explanation

The statement is true because approximately 70 percent of the Earth's surface is covered by water. This includes the oceans, seas, lakes, rivers, and other bodies of water. The remaining 30 percent consists of landmasses and continents. The abundance of water on Earth is crucial for supporting various ecosystems, climate regulation, and providing a habitat for countless species.

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3.

Which one is most likely is a bottom dweller?

Shark
Blue Fish Tuna
Flounder
Whale

Correct Answer

A. Flounder

Explanation

A flounder is most likely a bottom dweller because it is a type of flatfish that is adapted to live and camouflage itself on the ocean floor. Its flattened body shape and ability to change color help it blend in with the sandy or rocky bottom, making it difficult for predators to spot. Additionally, flounders have both eyes on one side of their body, allowing them to lie flat on the ocean floor and still see their surroundings. This adaptation enables them to find food and avoid danger while staying close to the bottom of the ocean.

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4.

Pollution is a harmful waste product that harm the environment

True
False

Correct Answer

A. True

Explanation

Pollution refers to the introduction of harmful substances or contaminants into the environment, which can cause damage to ecosystems, human health, and natural resources. These pollutants can come from various sources such as industrial activities, vehicle emissions, and improper waste disposal. They can have detrimental effects on air, water, and soil quality, leading to various environmental problems like climate change, habitat destruction, and health issues. Therefore, pollution is indeed a harmful waste product that harms the environment.

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5.

How much of earth water is salt water?

About 97.5
About 70 percent
About 2.5
About 1.2 percent

Correct Answer

A. About 97.5

Explanation

Approximately 97.5% of Earth's water is salt water. This means that the majority of water on our planet is found in the oceans and seas, which contain high levels of dissolved salts. The remaining 2.5% is freshwater, found in sources such as lakes, rivers, and underground aquifers. This stark difference in percentages highlights the scarcity of freshwater resources and the importance of conservation efforts to ensure access to clean drinking water for humans and other living organisms.

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6.

The oceans formed about 4 to 4.5 billion years ago by the eruption of volcanoes that brought gases up to the earth's surface.

True
False

Correct Answer

A. True

Explanation

The explanation for the given correct answer is that the oceans formed about 4 to 4.5 billion years ago through volcanic eruptions. These eruptions brought gases up to the earth's surface, which eventually condensed and formed the vast bodies of water we now call oceans. This process is believed to have occurred during the early stages of Earth's formation and played a crucial role in shaping the planet's surface and creating a suitable environment for the development of life.

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7.

Most ______ comes from the oceans and is returned to the earth as precipitation

Correct Answer
evaporation
condensation
transpiration

Explanation
The question is asking for the source of most precipitation on Earth. The three options provided, evaporation, condensation, and transpiration, all play a role in the water cycle. Evaporation refers to the process where water changes from a liquid to a gas and rises into the atmosphere. Condensation is the process where water vapor in the air cools and changes back into liquid form, forming clouds. Transpiration is the process where plants release water vapor through their leaves. All three processes contribute to the water vapor in the atmosphere, which eventually condenses and falls back to the Earth as precipitation.

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8.

About how many people in the world lack water?

1.1 billions
5 millions
100 millions
5 billions

Correct Answer

A. 1.1 billions

Explanation

Approximately 1.1 billion people in the world lack access to clean and safe drinking water. This means that a significant portion of the global population does not have access to a basic necessity for survival and sanitation. Lack of access to clean water can lead to numerous health issues and can hinder economic and social development in affected areas.

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9.

Which is another name for water cycle.

Hydrologic cycle
Life cycle
Food chain
Food pyramid

Correct Answer

A. Hydrologic cycle

Explanation

The water cycle is also known as the hydrologic cycle. This process involves the continuous movement of water on, above, and below the Earth's surface. It includes processes such as evaporation, condensation, precipitation, and runoff. The term "hydrologic" refers to the study of water and its movement within the Earth's system. Therefore, the hydrologic cycle is the correct term to describe the continuous circulation of water in the environment.

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10.

Never a stream’s discharge increase so much that the river channel cannot hold the increased volume of water.

True
False

Correct Answer

A. False

Explanation

The statement is false because it is possible for a stream's discharge to increase to a point where the river channel cannot hold the increased volume of water. This can lead to flooding and overflow of the river banks.

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11.

The oceans get saltier due to what?

Pollution in the ocean
To the rivers that flow into them
People swimming in the ocean.

Correct Answer

A. To the rivers that flow into them

Explanation

The oceans get saltier due to the rivers that flow into them. When rivers flow into the oceans, they carry dissolved minerals and salts from the land. Over time, these minerals and salts accumulate in the oceans, making them saltier. This process is known as "riverine input" and is one of the main factors contributing to the salinity of the oceans. Pollution in the ocean and people swimming in the ocean may have other impacts, but they do not directly cause the oceans to become saltier.

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12.

Can pollution effect people life on a daily basis.

True
False

Correct Answer

A. True

Explanation

Pollution can indeed have a significant impact on people's lives on a daily basis. The release of harmful pollutants into the air, water, and soil can lead to various health issues such as respiratory problems, allergies, and even chronic diseases. Air pollution, for example, can cause breathing difficulties and increase the risk of heart attacks. Water pollution can contaminate drinking water sources, leading to waterborne diseases. Additionally, pollution can also harm ecosystems, disrupt food chains, and negatively affect agricultural productivity. Therefore, it is evident that pollution can have a direct and indirect impact on people's daily lives.

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1

13.

Which one is a natural made lake in the United States?

Falls Lake
Hiwassee Dam
Great Lake
Hills Creek Reservoir & Hills Creek Dam

Correct Answer

A. Great Lake

Explanation

The only option that is a naturally made lake in the United States is Great Lake. The other options, Falls Lake, Hiwassee Dam, and Hills Creek Reservoir & Hills Creek Dam, are man-made structures. Great Lake, on the other hand, is a natural lake formed by glacial activity during the last ice age.

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14.

Most evaporation comes from what?

River
Ponds
Ocean
Lakes

Correct Answer

A. Ocean

Explanation

The ocean is the largest body of water on Earth and covers about 71% of the planet's surface. Due to its vast size and exposure to sunlight, the ocean experiences significant evaporation. This process involves the conversion of liquid water into vapor, which then rises into the atmosphere. Therefore, the ocean is the primary source of evaporation, contributing to the water cycle and the formation of clouds and precipitation.

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Understanding The Hydrosphere And How Does IT Impact The Environment.

Salt Water is what?

Quiz Preview

About 70 percent of earth is covered by water?

Which one is most likely is a bottom dweller?

Pollution is a harmful waste product that harm the environment

How much of earth water is salt water?

The oceans formed about 4 to 4.5 billion years ago by the eruption of volcanoes that brought gases up to the earth's surface.

Most ______ comes from the oceans and is returned to the earth as precipitation

About how many people in the world lack water?

Which is another name for water cycle.

Never a stream’s discharge increase so much that the river channel cannot hold the increased volume of water.

The oceans get saltier due to what?

Can pollution effect people life on a daily basis.

Which one is a natural made lake in the United States?

Most evaporation comes from what?