QUESTION NO.1 Anything that causes damage to the and makes the contaminated is called air polluton.
OPTIONS:
a) atmosphere
b) toilet
c) school

QUESTION NO.2
What are the causes of Acid Rain?
ANS:

1 ans is atmosphere

2 ans is Acid rain is a rain or any other form of precipitation that is unusually acidic, meaning that it has elevated levels of hydrogen ions. It can have harmful effects on plants, aquatic animals, and infrastructure.

2h2o2--> 2h2o + o2

this reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen.

add 2 molecules of hydrogen peroxide and 2 molecules of water. since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

this may not be entirely correct but let me know.