Which of the following is an example of Posative feedback in an earth system? A. Exercise makes a person warm. They perspire which cools there body.
B. Warm weather heats a rain forest, causing water vapor to rise and condense into clouds.
C. Warm air melts sea ice, exposing more sea water to sunlight, which marks the water. The warm water is harder to freeze when the air temperature drops.
D. A field of grass absorbs sunlight, grows tall, produces seeds, and releases the seeds to produce a new generation of grass.
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