Cycles of Matter in Ecosystems

Mr. Hernandez's science class learned that green plants use sunlight, water, and carbon dioxide to make their own food and release oxygen in the process. How can the class explain how animals complete the oxygen-carbon cycle?

• Animals take in the oxygen, but do not release gas as they use energy.

• Animals take in carbon dioxide and use it to make food.

• Animals take in oxygen and release nitrogen as waste.

• Animals take in oxygen and as they use energy, carbon dioxide is released as waste.

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NGSS.MS-LS2-3

All living things use energy and release gas as a waste product. What cycle explains the circulation of these gases?

• Oxygen-Carbon cycle

• Water cycle

• Nitrogen cycle

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NGSS.MS-LS2-3

Rain water that flows over Earth's surface is called ________. This water gathers in lakes and rivers.

• runoff

• groundwater

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NGSS.MS-ESS2-4

How do animals get nitrogen that is stored in the soil?

• Plants absorb the nitrogen from the soil and animals can eat the plants.

• Animals do not take in the nitrogen stored in the soil.

• Bacteria change the nitrogen into a gas that the animals breathe.

Water evaporates from the leaves of a plant and returns to the atmosphere in a process called ________.

• respiration

• transpiration

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NGSS.MS-ESS2-4

Which part of the water cycle includes water vapor gas changing to a liquid?

• condensation

• evaporation

• precipitation

• transpiration

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NGSS.MS-ESS2-4

Which of the following is not part of Earth's geosphere?

• mountains

• soil

• rivers

• volcanoes

which of the earth's systems interact with each other?

• geosphere and hydrosphere only

• hydrosphere and atmosphere only

• atmosphere and biosphere only

• all of earth's systems interact with each other

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NGSS.MS-ESS2-4

NGSS.MS-ESS2-1

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the (a)   is a layer of gases including oxygen and nitrogen that surrounds the Earth

all of earth's liquid and solid water make up the (a)  

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NGSS.MS-ESS2-4