Question

1. Manufacturing, processing and handling of corrosive and
toxic substances.

2. Metal cleaning, photo engraving and soldering in
electronic industry.

3. Manufacturing coal briquettes and burning coal.

4. Production of sports goods which involves exposure to
chemicals, synthetic materials, and leather.

5. Pulp and paper industries.

Why these are hazardous industry

Answer 1

They are hazardous because:.

chemicals are used

many harmful substances which can harm our body