Answered

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which of the following statements about the greenhouse effect is true?
A. The greenhouse effect is caused by human activity
B. Life on earth is suffering because of the greenhouse effect
C. Life on earth wouldn't exist without the greenhouse effect
D. All greenhouse gases are harmful

Sagot :

aurora017892

Answer:

C

Explanation:

Greenhouse gases in the air, mainly carbon dioxide, methane and water vapour, trap radiation from the Sun and act like a thermal blanket around the planet. Without greemgouse effect, the Earth would have an avarage temperature of -18°C and be covered in ice. Life as we know it would not be able to survive. Hioe this helps

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