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9/3 Step 1 Feedback Loop Warm Up AP

Last updated 10 months ago

7 questions

1

1

Question 2

2.

1

1

1

1

1

Question 1

1.

As carbon dioxide levels in the atmosphere rise:
• The temperature of Earth rises --> The rate of photosynthesis in plants increases --> More carbon dioxide is therefore removed from the atmosphere by plants, reducing the greenhouse effect and reducing global temperatures

Positive Feedback Loop

Negative Feedback Loop

Explaination:

Question 3

3.

As Earth warms:
• Ice cover melts, exposing soil or water --> Albedo decreases --> More energy is absorbed by Earth’s surface --> Global temperature rises --> More ice melts

Positive Feedback Loop

Negative Feedback Loop

Question 4

4.

Explaination:

Question 5

5.

As Earth warms, polar ice caps melt releasing large numbers of icebergs into oceans:
• Warm ocean currents, such as Gulf Stream, are disrupted by additional freshwater input into the ocean --> Reduced transfer of energy to poles reduces the temperature at high latitudes -->Ice sheets reform and icebergs retreat --> Warm currents are re-established

Positive Feedback Loop

Negative Feedback Loop

Question 6

6.

Explaination:

Question 7

7.

What does albedo have to do with feedback loops?