In which form the carbon is found in the atmosphere of earth?

Options

A. Only `CO_2`
B. Only `CO`
C. Only chlorofluoro carbon and methane
D. `CO_2` in less quantity with Carbon Monoxide :

Explanation

**Step-by-Step Solution:**

1. **Understanding the Atmosphere Composition**: The Earth's atmosphere is composed of various gases. The primary gases include nitrogen (approximately 78%), oxygen (approximately 21%), and trace amounts of other gases.

2. **Identifying Carbon Forms**: The question asks specifically about the forms of carbon found in the atmosphere. The two main forms of carbon in the atmosphere are carbon dioxide (CO2) and carbon monoxide (CO).

3. **Analyzing Carbon Dioxide (CO2)**: Carbon dioxide is a significant greenhouse gas and is present in the atmosphere in larger quantities compared to other carbon forms. It is produced naturally through processes like respiration, combustion, and volcanic activity.

4. **Analyzing Carbon Monoxide (CO)**: Carbon monoxide is produced mainly from incomplete combustion of fossil fuels and is present in much smaller quantities compared to carbon dioxide. It is not a major component of the atmosphere under natural conditions.

5. **Considering Other Carbon Compounds**: Other carbon compounds such as chlorofluorocarbons (CFCs) and methane (CH4) are also present, but they are not the primary forms of carbon in the atmosphere. CFCs are synthetic and released from refrigeration and air conditioning, while methane is produced from biological processes and is also a trace gas.

6. **Conclusion**: Based on the analysis, the primary form of carbon found in the Earth's atmosphere is carbon dioxide (CO2), which is present in the greatest quantity compared to other forms of carbon.

**Final Answer**: Carbon is primarily found in the atmosphere of Earth in the form of carbon dioxide (CO2).

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