The amount of carbon on the earth, including the atmosphere,
A. is essentially constant.
B. is decreasing due to consumption of carbon based fuels, such as coal and petroleum.
C. is increasing due to plant and animal growth on the planet.
D. fluctuates dramatically with the seasons.
Answer:A
The amount of carbon on the earth, including the atmosphere,
A. is essentially constant. B. is decreasing due to consumption of carbon based fuels, such as coal and petroleum. C. is increasing due to plant and animal growth on the planet. D. fluctuates dramatically with the seasons.