Question

What is the main cause of acid rain?
A. Pollution
B. Deforestation
C. Deforestation
D. Excessive rains

Answer 1

Hint: The deposition of acid in the form of rain is known as acid rain. Acid rain occurs when contaminants in the atmosphere, such as nitrogen oxides and sulphur, combine with rainfall and fall as rain. It's created by a chemical reaction that starts when substances like sulphur dioxide and nitrogen oxides are discharged into the atmosphere.

Complete answer:
Option A: Acid rain is made up of highly acidic water droplets that form as a result of air pollution, particularly the disproportionate amounts of sulphur and nitrogen produced by cars and manufacturing operations. Acidic deposition can now take place in two ways: wet and dry. Wet deposition is any sort of precipitation that takes acids from the atmosphere and deposits them on the earth's surface, whereas dry deposition of contaminating particles and gases sticks to the ground through dust and smoke in the absence of precipitation. However, pollution is the primary cause of acid rain. This is due to the fact that acid rain is created when compounds such as sulphur dioxide and nitrogen oxides are released into the air, and these compounds quickly dissolve in water and are easily carried by the wind.
These substances, on the other hand, can travel to great heights in the atmosphere, where they mix and react with water, oxygen, and other chemicals to generate new substances.
So, option A is correct.
Option B: The removal of a forest or stand of trees from land that is then changed to non-forest usage is known as deforestation, clearance, clearcutting, or clearing. As part of deforestation, forest land might be turned to farming, ranching, or urban use.
So, option B is not correct.
Option C: The formation of a forest or a stand of trees in an area where there was previously no tree cover is known as afforestation. Many governments and non-governmental groups are directly involved in afforestation efforts to improve carbon capture and develop forests.
So, option C is not correct.
Option D: When sulphur dioxide and nitrogen oxides are discharged into the air, a chemical reaction occurs, resulting in acid rain. These substances can ascend to great heights in the sky, where they mix and react with water, oxygen, and other molecules to produce more acidic pollutants, which are known as acid rain.
So, option D is not correct.

Hence, we can say that option A is the correct answer.

Note:
Effects of acid rain-
It affects both animals and humans' respiratory systems.
Acid rain has an impact on the aquatic ecology when it falls and runs into rivers and ponds. It creates water pollution by changing the chemical composition of the water to a state that is damaging to the aquatic ecosystem's ability to exist.
Corrosion of water pipelines is also a result of acid rain. As a result, heavy metals including iron, lead, and copper are leached into drinking water.
It causes damage to stone and metal structures and monuments.