What causes acid rain? Mention any damage caused by it on living organisms.

(N/A) Acid rain is caused by the presence of pollutants like sulphur dioxide $(SO_2)$ and nitrogen dioxide $(NO_2)$ in the atmosphere. These gases react with water vapor in the air to form sulphuric acid and nitric acid,which fall to the ground with rain.
Damage to living organisms:
$1$. In plants: It leads to stunted growth,yellowing of leaves (chlorosis),and can eventually cause the death of the plant.
$2$. In animals and humans: It causes skin irritation,itching,respiratory problems,and can lead to long-term health issues due to the accumulation of toxic metals leached from the soil.