Systems of the Biosphere Answers

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1
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What system includes the core, mantle, and crust of the Earth?

A
geosphere
B
hydrosphere
C
atmosphere
D
biosphere
2
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The hydrosphere does not overlap with any other spheres.

A
T
B
F
3

The atmosphere is unaffected by changes in the geosphere.

A
T
B
F
4

Which of the following is a function of the atmosphere?

A
facilitating the process of rock formation
B
providing a moderate, livable climate
C
facilitating the process of photosynthesis
D
serving as the interface between all spheres
5

Which system protects us from radiation and the vacuum of space?

A
geosphere
B
hydrosphere
C
atmosphere
D
biosphere
6

Earth’s systems interact through _______.

A
humans
B
glacial episodes
C
feedback mechanisms
D
none of the above
7

Human impact on one system leads to changes in more of Earth’s systems.

A
T
B
F
8

What is the main difference between negative and positive feedback?

A
Positive feedback leads to system instability, while negative feedback leads to system stability.
B
Positive feedback is caused by human impact, while negative feedback occurs naturally.
C
Negative feedback ultimately leads to an increase in the first variable, while positive feedback ultimately leads to a decrease in the first variable.
D
Positive feedback occurs at a much faster rate than negative feedback.
9

What system facilitates the movement of water between spheres through the process of transpiration?

A
geosphere
B
hydrosphere
C
atmosphere
D
biosphere
10

Positive feedback interactions in Earth’s systems are always a result of human action.

A
T
B
F

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