Question

what is acid rain how it occurs

Answer 1

acid rain occours when the harmful gases tat are present in air mainly So2 and CO2 go in rhe atmisphere and if rain occurs the gases mixes with tge rain water forming acids there and due to rain the water comes down....leading to avid rain...

Answer 2

When rain water is mixed with nitric acid or sulphuric acid its pH which is orignally 7 decreases to 5.5 or becomes less than 5.5 then it causes acid rain. Acid rain can affect-

The walls of monuments and building as the acids react with their walls spoiling them.
It can affect skin of human beings.
It can kill aquatic animals as it changes the pH of water.
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