EDUCATION (CBSE/UGC NET)

Detailed explanation-1: -Acid rain is caused by the release of sulfur dioxide and nitrogen oxides into the atmosphere, where they react with water, oxygen, and other chemicals to become sulfuric and nitric acid respectively. The pH of acid-impacted rain is generally below 4.5 on the pH scale.

Detailed explanation-2: -Environmental effects When sulfur dioxide combines with water and air, it forms sulfuric acid, which is the main component of acid rain.

Detailed explanation-3: -WHY DOES ACID RAIN OCCUR? Volcanic eruptions, earthquakes, natural fires, lightning and some microbial processes release sulphur dioxide and nitrogen oxides into the atmosphere.

Detailed explanation-4: -Sulfur dioxide is used in many industries. It’s used to manufacture sulfuric acid, paper, and food preservatives. Some examples of workers at risk of being exposed to sulfur dioxide include the following: Factory workers in industries where it occurs as a by-product, such as copper smelting or power plants.

Detailed explanation-5: -Most of the sulfur dioxide released into the environment comes from electric utilities, especially those that burn coal. Some other sources of sulfur dioxide include petroleum refineries, cement manufacturing, paper pulp manufacturing, and metal smelting and processing facilities.