The Hydrosphere Quiz

Two hydrogen atoms and an oxygen atom are joined to make a water molecule. The molecule is polar because the water molecule _____.

• forms a triangular shape

• contains two hydrogen atoms 

• contains only one oxygen molecule 

• has a slightly positive end and a slightly negative end

Tags

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Where is most of the water on earth located?

• In the oceans

• In polar ice and glaciers

• in rivers, streams and lakes

• under the ground

Tags

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An example of non-point source of pollution is

• wastewater from a leaking pipe

• fertilizer runoff from lawns

• oil from a leaking underground tank

• chemicals released from a paper mill

Tags

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Water dissolves many substances so it is called the ....

• Wonderful water

• Capillary action

• Water cycle

• Universal solvent

Tags

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Because water has a positive charge and a negative charge, it is ....

• Polar

• Normal

• Negative

• Positive

Tags

NGSS.MS-PS1-1

What is the source of most of the salt in the 

ocean?

• human activities

• rocks on land

• fish

• wind

How can the atmosphere be considered part

  of the hydrosphere?

• It is a source of water.

• It blocks ultraviolet rays from the sun.

• It contains the oxygen necessary for life on Earth

• It traps pollutants that would otherwise harm the Earth.

Tags

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What two elements make up water?

• Helium and oxygen

• Hydrogen and oxygen

• Helium and carbon

• Oxygen and carbon

Tags

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A clear example of point-source pollution is

• trash floating in ocean water

• feedlots wastes in a river

• oil spilling from a supertanker

• salts from irrigation

Which best explains why most of Earth’s freshwater is NOT used for drinking?

• It is too polluted.

• It is too deep underground.

• It is used for agriculture.

• It is frozen in glaciers and ice caps.

Tags

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