ESS
Grade-9
Easy
Question
The spatial coverage of sea ice will decrease as carbon dioxide levels rise. As a result, the reduced sea ice extent is a ________.
- Positive feedback on surface temperature because it has a higher albedo than the ocean.
- Positive feedback on surface temperature because it has a lower albedo than the ocean.
- Because sea ice has a lower heat capacity than the ocean, there is positive feedback on surface temperature.
- Both B and C are true.
The correct answer is: Positive feedback on surface temperature because it has a higher albedo than the ocean.
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