Question 4 : What are the three determinants of the earth\'s energy balance? Cho

Question

Question 4 :What are the three determinants of the earth's energy balance? Choose all that apply.

This task contains the radio buttons and checkboxes for options. The shortcut keys to perform this task are A to H and alt+1 to alt+9.

A

Variations in the earth's fossil fuel supply

B

Changes in the greenhouse effect, which affects the amount of heat retained by the earth's atmosphere

C

Changes in the reflectivity of the earth's atmosphere and surface

D

Variations in the Sun's energy reaching earth

E

Changes in the earth's magnetic field

F

Variations in the earth's ability to retain heat

Explanation / Answer

Earth's energy balance is maintained by two factors - the amount of incoming solar radiation and the outgoing infrared radiation sent back to the space by the Earth.

Considering the above mentioned factors, the options that apply to the question are:

B. Changes in the greenhouse effect, which determines the amount of heat retained by the earth's atmosphere.

C. Changes in the reflectivity of the Earth's atmosphere and surface alters the amount of heat retained by the Earth's surface.

D.Variation in the Sun's energy reaching earth, thereby increasing or decreasing the amount of insolation.

F.Variations in the earth's ability to retain heat.

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