. In summer, the impact of greater cloud cover depends on the height of the clouds. Cooling would prevail with an increase in low cloud cover, thereby providing feedback. Warming would likely accompany an increase in high cloud cover, thereby providing the opposite feedback.

The correct answer is Negative Feedback.

Explanation:

In physics, it is proven that dark-colored surfaces absorb more heat than light-colored surfaces. This is called the albedo effect.

In relation to this effect, when there is an increase in low cloud cover, the amount of sun absorbed by the earth's surface decreases. This translates to a decrease in temperature or cooling of the earth's surface.

This is termed a Negative Feedback.

Low could cover has the ability to reflect heat from the sun back into space thus resulting in the cooling of the earth's surface. High could cover, otherwise known as feathery clouds have the opposite effect.

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