The highest chemical pollution is caused by the industrial effluents of

The correct answer is (a) Leather industry.

Leather is produced from the skin of animals, and the process of tanning leather uses a variety of chemicals, including chromium salts, formaldehyde, and solvents. These chemicals can pollute the air, water, and soil.

The paper industry uses a variety of chemicals, including chlorine, bleach, and sulfuric acid. These chemicals can pollute the air, water, and soil.

The rayon industry uses a variety of chemicals, including sodium

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