Grass has an albedo of about 0.20 and rock has an albedo of about 0.30. Which will reflect more of the Sun’s radiation, grass or rock? Explain why.

Suppose that an increase in water vapour resulted in the increase in the number of cloudy days. These clouds kept the Sun’s light from reaching Earth, thus lowering the average temperature. (a) What would happen to the amount of water evaporating from lakes and oceans in this scenario? (b) Would this be a positive or a negative feedback loop? Explain with a diagram.

What is the difference between a positive feedback loop and a negative feedback loop? Give an example of each.

a. Define the term albedo. b. State three factors that the albedo of a surface depends on.

How does high albedo affect the planetary climate? a. High planetary albedo means more sunlight is reflected, and the planet warms. b. High planetary albedo means less sunlight is reflected, and the planet warms. c. High planetary albedo means more sunlight is reflected, and the planet cools. d. High planetary albedo means less sunlight is reflected, and the planet cools.