Question

Arctic ice plays an important role in cooling the Earth. Which evidence from the passage best supports this statement?

Answer 1

Arctic ice reflects the Sun's light.

Explanation:

The evidence from the passage that best supports the statement is that Arctic ice reflects the Sun's light.

Ice is a white body and it has a very high albedo of above 90%. It reflects a lot of radiation incident on its surface.

• The Arctic ice helps to cool the surface temperature.
• Instead of absorbing the short wavelength radiation from the sun, it reflects them back.
• When a body absorbs radiation, it emits long wave radiation that warms the earth surface
• In the Arctic ice, the reflectivity is high and the short wave radiation are turned back.

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