Question

On which part of the carbon cycle have humans had the greatest impact? storage of co2 in the oceans all of the answer options have been greatly impacted by humans. return of co2 to the atmosphere by burning of ancient organic matter deposition of organic carbon in deep sea sediments capture of atmospheric co2 by chemical weathering of rocks

Answer 1

Hello!

The part of the carbon cycle where humans had the greatest impact is the return of CO₂ to the atmosphere by burning of ancient organic matter.

The ancient organic matter is also called Fossil Fuels. Some Fossil Fuels are Petroleum and Coal. Fossil Fuels are used to power our society and are burned to provide energy for power plants and vehicles, and by burning them, Carbon Dioxide (CO₂) is produced, increasing the natural concentration of this compound in the atmosphere.

Have a nice day!