Question

how exhaust from vehicles are responsible for air pollution

Answer 1

Because it contains harmful gases which is responsible for Global warming which is ultimately destroying our earth

Answer 2

exhaust of vehicles things dangerous gases likes carbon monoxide sulphur oxide ,oxide of nitrogen and carbon dioxide which leads to air pollution these gases are dangerous and If breathed lot of amount can cause diseases like asthma and bronchitis these gases when mixed with water forms water vapours which Rises up to air and cause ACID rains which can destroy plants and livelihoods

hope it helps