Earth Systems, Interactions and Feedback Loops
Assessment
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Science
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9th Grade
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1 plays
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Medium
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20 questions
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1.
Multiple Choice
A process in which an event acts as both an input and output of the same system is called a(n)
Earth system.
feedback loop.
photosynthesis.
lithosphere.
2.
Multiple Choice
Oceans, polar ice caps, and groundwater would all be considered part of Earth’s __________________________.
geosphere
biosphere
hydrosphere
atmosphere
3.
Multiple Choice
In a ____________________ feedback loop, the output of a system moving in one direction acts as input that causes the system to move in the other direction.
positive
negative
neutral
4.
Multiple Choice
Negative and positive feedback loops are similar because
inputs of the cycle are also outputs of the cycle.
True
False
5.
Multiple Choice
Choose the correct statement about feedback loops:
Negative feedback loops destabilize a system and are rare in natural systems.
Negative feedback loops stabilize a system and are rare in natural systems.
Positive feedback loops destabilize a system and are rare in natural systems.
Positive feedback loops destabilize a system and are common in natural systems.
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