Question:

$SO_2$ and $NO_2$ cause polluted by increasing

Updated On: Jul 7, 2022
  • Acidity
  • Alkalinity
  • Buffer action
  • Both (1) and (3)
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The Correct Option is A

Solution and Explanation

Sulfur dioxide $\left( SO _{2}\right)$ and nitrogen oxides $\left( NO _{2}\right)$ are emitted into the atmosphere and transported by the wind and air currents. The $SO _{2}$ and $NO _{2}$ react with water, oxygen and other chemicals to form sulfuric and nitric acids. These then mix with water and other materials before falling to the ground in the form of acid rain. When this acid deposits on land or water it results in acidity.
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Concepts Used:

Atmospheric Pollution

  • The pollution that directly harms living organisms is the atmospheric pollution, air is more essential than food when it comes to the survival of life on earth. Atmospheric pollution is, consequently, a major concern for life on the planet. The most common type of air pollution that affects much of the world is Smog (smoke + fog).
  • Pollution is the outcome of undesired changes in the environment with harmful effects on plants, animals, and humans. The element that causes pollution is commonly known as pollutants.
  • Pollutants may be solids, liquids, or gases that are present in large quantities in nature and produced due to human activities or natural circumstances.
  • For instance, materials such as dichlorodiphenyltrichloroethane (DDT), heavy metals, chemicals, plastic materials, nuclear waste, etc., once disclosed to the environment it is difficult to remove.

Causes of Atmospheric Pollution:

There is a number of factors that contribute to the pollution of the environment. Some of the major causes of atmospheric pollution are given below -

  • Industrial waste
  • Usage of pesticides
  • Deforestation
  • Combustion of fuels
  • Nuclear Explosions
  • Use of Toxic Solvents