Question

Which of the following are the major water polluting industries?
(i) Tanneries
(ii) Chemical industries Brick kilns
(iii) Refineries
(iv) Brick kilns
(a) (i) and (ii)
(b) (iii) and (iv)
(c) (i) and (iv)
(d) (ii) and (iii)

Answer 1

Answer:

a is answer

Explanation:

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Answer 2

Tanneries and Chemical industries Brick kilns are the major water polluting industries.

Explanation:

• Tannery industries are the most polluting because of the extensive range of chemicals used in the conversion of animal skins to leather. In tannery effluent, chromium salts, phenolics, tannins, and organic matter, among other compounds, are regularly released into the environment.
• Brick kilns are one of the main stationary producers of black carbon, accounting for 20% of total black carbon emissions together with iron and steel manufacturing.
• Brick kilns degrade air quality and human health, and harmful pollutants have a significant impact on the lives of billions of people.