Ap Biology? Multiple Choice? 10 easy points?

Question

The main cause of the increase in the amount of CO(2) in earth's atmosphere over the past 150 years is

A. Increase worldwide primary production

B. Increase worldwide standing crop

C. An increase in the amount of infrared radiation absorbed by the atmosphere

D. The burning of Larger amounts of wood and fossil fuels

E. Additional respiration by the rapidly growing human population

Thx and plz state why for ur answer

thx and best answer

Answer 1

D

the burning of fossil fuels releases CO2 into the atmosphere

Answer 2

i choose letter D...

because, as stated, we burn larger amounts of fossil fuel used to power our vehicles and power plants which burn ... fossil fuel :)

i believe these are the main sources of increase CO2 concentration in our atmosphere today

... letter c is close but the fact that infrared radiation being absorbed in the earth's has already been going on for millions of years... it's just that lesser of it is released back to space now because the polar caps, acting as the reflectors because of its whiteness, has decreased