Earth Systems Chapter 1 Test

An engineer is a person who

• studies stars and other objects in our universe.

• studies the relationships between living things and their environment.

• researches the physical properties and systems involved in the water on Earth.

• uses science knowledge to design something in order to solve a problem.

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About how much of the water on Earth is freshwater?

• about 5%

• about 33%

• about 72%

• about 97%

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Which of the following statements about freshwater is true?

• All the freshwater on Earth is available for humans to use.

• Most of the freshwater on Earth is available for humans to use.

• Only a small amount of freshwater on Earth is available for humans to use.

• Freshwater isn’t necessary for human survival.

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Where is most of Earth’s freshwater found?

• glaciers and groundwater

• lakes and wetlands

• oceans and rivers

• swamps and ponds

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Groundwater is

• like a huge underground lake.

• the water found at the bottom of lakes and rivers.

• the water that collects on the surface.

• all the water between the rocks & soil in the ground.

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Which of the following IS an example of surface freshwater?

• glaciers

• rivers

• oceans

• all of the above are examples of freshwater

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Which is true about how the amount of people can affect the amount of freshwater available?

• More freshwater will be used up if there are less people living in an area.

• More freshwater will be used up if there are more people living in an area.

• Less freshwater will be used up if there are more people living in an area.

• The amount of people living in an area will not affect the amount of freshwater that is available.

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What is a reservoir?

• water that has been used and contains harmful substances

• the solid part of Earth

• a long period of dry weather without rain

• a place where freshwater is stored

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Which of the following IS NOT a main reason there are shortages of freshwater?

• people using too much water

• droughts that result in long periods without rain

• too much precipitation

• water becoming very polluted and unclean

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Water, air, trees, and soil are all natural _____________ that people rely on every day.

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