NEET BIOLOGY

Detailed explanation-1: -However, China’s widespread air pollution from coal-fired power plants has led to some of the most acidic rain on Earth: Burning coal releases sulfur dioxide, nitrogen dioxide and other pollutants into the atmosphere, where they are assimilated by falling rainwater, creating sulfuric acid and nitric acid.

Detailed explanation-2: -Tropical climatic conditions reduce the atmospheric oxides load, the predominantly alkali-rich soil has an additional neutralising effect, high ambient temperature and sunlight brightness increase the efficiency of atmospheric chemical reactions which decrease acidic deposition.

Detailed explanation-3: -Acid rain (pH < 5.6) has been a severe environmental issue in China since the 1970s, adversely impacting ecosystem health.

Detailed explanation-4: -United States and Canada are the countries which are mostly affected by acid rain because of high number of factories, power plants and large number of automotive plants. Europe, Poland, Germany, Czech Republic, Sweden, Norway and Finland are affected because of British and European factories.