Question

Out of the 5.5 billion tons of carbon released in each year through combustion of fossil fuels, ______ billion tons stays in the atmosphere.

Options

• 5.5

• 4.5

• 3.3

• 1.2

Answer 1

Out of the 5.5 billion tons of carbon released in each year through combustion of fossil fuels, 3.3 billion tons stays in the atmosphere.

Explanation:

Not all carbon released from burning fossil fuels remains in the air; significant amounts are absorbed by natural “sinks” like oceans and terrestrial plants. Out of the 5.5 billion tons released annually, approximately 3.3 billion tons accumulate in the atmosphere, contributing to the greenhouse effect.