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WorksheetsHS-ESS2-2 Feedbacks & Earth Systems
Total questions: 17
Worksheet time: 12mins
The following is an example of what type of feedback loop?
Negative Feedback Loop
Neutral Feedback Loop
Positive Feedback Loop
Global Warming Feedback Loop
Which is an example of a negative feedback loop?
Decreasing temperature ➜increase in ice cover ➜increase in reflection of sunlight ➜decrease in temperature
Decreasing temperature ➜decrease in plant cover ➜decrease in absorption of carbon dioxide ➜increase in temperature
What type of feedback loop is this?
positive
negative
What type of feedback is this?
positive
negative
What type of feedback is this?
positive
negative
The increase of the greenhouse gas carbon dioxide(CO2) increases Earth's surface temperature, warming the atmosphere. A warmer atmosphere has been creating conditions for increased pine bark beetle infestations which are killing many trees in Western Forests. The increase of dead trees in a forest reduces the forest's gross primary productivity which means less CO2 is being absorbed from the air for photosynthesis. This increases the amount of CO2in the atmosphere which then increases Earth's surface temperature, warming the atmosphere further. What type of feedback is this?
positive
negative
