Systems of the Biosphere Answers

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1
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What system facilitates the movement of water between spheres through the process of transpiration?

A
geosphere
B
hydrosphere
C
atmosphere
D
biosphere
2
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Which system protects us from radiation and the vacuum of space?

A
geosphere
B
hydrosphere
C
atmosphere
D
biosphere
3

The hydrosphere does not overlap with any other spheres.

A
T
B
F
4

Which of the following best explains why the biosphere is a key component of the Earth’s systems?

A
The biosphere is a key component of the Earth’s systems because it is a common concept to many disciplines in science.
B
The biosphere is a key component of the Earth’s systems because the seasonal cycles directly affect primary productivity.
C
The biosphere is a key component of the Earth’s systems because it helps drive the other systems by interacting with and exchanging matter and energy with the other spheres.
D
The biosphere is a key component of the Earth’s systems because it has evolved to create the chemical composition of the planet we know today.
5

Which is not an example of an earth system cycle?

A
seasons
B
tsunamis
C
food web
D
day and night
6

What system includes oceans, lakes, rivers, and groundwater?

A
geosphere
B
hydrosphere
C
atmosphere
D
biosphere
7

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

A
geosphere
B
hydrosphere
C
atmosphere
D
biosphere
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

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

A
T
B
F
10

What is the main energy source that drives global climate?

A
solar
B
wind
C
mechanical
D
heat

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