Question

What is the primary cause of the overall rising trend in CO2 in the atmosphere?

A. CO2 is increasing because we are coming out of an ice age

B.As human population grows, people exhale more CO2

C. CO2 is released by the oceans as they warm

D.The increase in CO2 is caused by burning of fossil fuels

Answer 1

D.The increases in CO2 is caused by burning of fossil fuels

Step-by-step explanation:

CO2 increases happens because the coal or oil burning process combines carbon with oxygen in the air to make CO2.

so the answer is D. The increase in CO2 is caused by burning of fossil fuels