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Question

If there was no CO2 in the earth's atmosphere, the temperature of the earth's surface would be:


A

Same as the present

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B

Less than the present

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C

Higher than the present

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D

Dependent on the amount of oxygen in the atmosphere

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Solution

The correct option is B

Less than the present


The correct option is B.

Explanation of the correct option:

  1. The concentration of greenhouse gases, notably methane and carbon dioxide, has been observed to change naturally throughout geological time scales.
  2. Furthermore, human activities such as the use of fossil fuels, gasoline-powered vehicles, and forest removal have all contributed to changes in the concentration of gases in the atmosphere.
  3. Various industrial effluents have raised the quantity of carbon dioxide in the atmosphere, which then interacts with other air pollutants.
  4. This traps solar energy and elevates the surface temperature of the Earth.
  5. This is also known as global warming.
  6. As a result, in the absence of carbon dioxide, global warming slows and the earth's temperature falls.

Final answer: If there was no CO2 in the earth's atmosphere, the temperature of the earth's surface would be less than the present.


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