Answers25.26 TCEC BIO 1Populations and the Environment

The Cycles of Matter Answers

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Which is the sphere that refers to the Earth’s water?

A
the geosphere
B
the atmosphere
C
the hydrosphere
D
the biosphere
3

Which statements describe characteristics of Earth's geosphere? Select three options.It is made up of living things.It is mostly solid.It includes liquid water.It includes Earth's surface.It includes Earth's interior.It is made up of gases and airborne particles.

A
It is made up of living things.
B
It is mostly solid.
C
It includes liquid water.
D
It includes Earth's surface.
E
It includes Earth's interior.
F
It is made up of gases and airborne particles.
4

How do animals get nitrogen?

A
They break down glucose molecules into nitrogen.
B
They convert carbon to nitrogen during fixation.
C
They eat it in plants and other animals.
D
They breathe it in from the atmosphere.
5

What is one negative effect of human influence on cycles of matter?

A
decreased soil nitrogen due to the harvesting of crops
B
decreased amount of carbon in the atmosphere due to deforestation
C
increased global warming due to the use of alternative energy sources
D
increased amount of water that is available to freshwater ecosystems
6

Which statements describe the importance of the nitrogen cycle to living things? Select two options.It provides a source of water.It helps cells make proteins.It provides a form of usable nitrogen.It removes carbon dioxide from the atmosphere.It destroys harmful bacteria.It helps cells make glucose.

A
It provides a source of water.
B
It helps cells make proteins.
C
It provides a form of usable nitrogen.
D
It removes carbon dioxide from the atmosphere.
E
It destroys harmful bacteria.
F
It helps cells make glucose.
7

What protects Earth's surface?

A
the atmosphere
B
the hydrosphere
C
the geosphere
D
the biosphere
8

Which process plays an important role in the cycling of both carbon and nitrogen?

A
photosynthesis
B
transpiration
C
decomposition
D
respiration
9

heliumcarbonzincpolonium

A
helium
B
carbon
C
zinc
D
polonium

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