Burning of fossil fuels has changed the atmosphere by 'a' or 'b'?

Question

A. producing an ozone hole
B. increasing the concentration of carbon dioxide

Thanks!

Answer 1

a for sure

Answer 2

C none of the above

A recent study published in England found that cow farts releashed more greenhouse gasses that all the gas powered engines from cars, planes and trains combined.

And there is now proof that greenhouse gases may be keeping us cooler.

Answer 3

not one of the above. in undemanding words the diesel engine achieves temperatures severe adequate to oxidize nitrogen. gas engines, jet engines, and exterior combustion engines (i.e. steam boilers) can't benefit the necessary temperatures. there is little or no nitrogen tied up in fossil fuels to be both released or oxidized in combustion.

Answer 4

The correct and only true answer is;
C. None of the above.

Answer 5

The expected answer is B, of course.