Question

Burning of fossil fuels has changed the atmosphere by A) producing a hole in the ozone. B) reducing the CFCs in the atmosphere. C) increasing the concentration of carbon dioxide. D) increasing the concentration of ozone in the atmosphere.

Answer 1

C) 8s the correct answer Plz mark as brainliest

Answer 2

C) Increasing the concentration of carbon dioxide.

Here, A cannot be the answer because it is the effect produced by increasing carbon dioxide.
It is an indirect effects of the burning of fossil fuels so, we choose the direct effect first.
Or you can mark both if it is allowed.

Thanks.