Answer :
The correct answer is option 4: this scenario describes a change in the nitrogen cycle and therefore should not affect the carbon cycle.
Other Options are Incorrect.
Option 1: Decrease in CO2 as a result of lithotrophy. Lithotrophy is the process of obtaining energy from inorganic substances, such as minerals or gases, rather than from organic matter. It is not directly related to the nitrogen cycle or the process of denitrification, and it is not likely to affect the carbon cycle in any way.
Option 2: Increase in CO2 in the atmosphere. An increase in nitrogen gas (N2) in the atmosphere as a result of denitrification would not affect the carbon cycle in any way, and it is not likely to cause an increase in CO2 in the atmosphere.
Option 3: Increase in CHXO in the soil. CHXO is not a known chemical compound or process, and it is not clear how it might be related to the nitrogen cycle or the carbon cycle. As such, it is not possible to accurately predict how an increase in CHXO might affect the carbon cycle.
Learn more about Denitrification here:
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