Question

what is acid rain? how it is harmful

Answer 1

rain that has harmful chemicals in it from factories, etc. that causes damage to trees, crops, buildings and rivers
Air pollution like sulfur dioxide and nitrogen oxides can cause respiratory diseases, or can make these diseases worse. Respiratory diseases like asthma or chronic bronchitis make it hard for people to breathe. The pollution that causes acid rain can also create tiny particles.

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Answer 2

ACID RAIN IS A MIXRURE OF ACID AND WATER
THESE ACIDS GET DISSOLVE IN RAIN AND MAKE IT ACIDIC THEN
THE RAIN GET ON SURFACE MAKING THINGS CORRODE BECAUSE OF CORROSIVE NATURE OF ACID

THE YELLOWNESS OF TAJ MAHAL IS SUCH EXAMPLE OF ITS HARMFUL NATURE

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