Question

Give two differences between toxic and non-toxic waste.

Answer 1

	Toxic waste	Non-toxic waste
1.	Certain wastes are classified as toxic because they seriously threaten human health and the environment. Some solid wastes are generated from domestic activities, such as food leftovers, fruit and vegetable peelings, bits of paper, and other rubbish often stored in dustbins.	The waste produced by shops, offices, restaurants, and schools does not seriously threaten animals, plants, or the environment.
2.	Some of the commercial toxic wastes are arsenic, cyanide, lead, cadmium, nickel, beryllium, uranium, and mercury and their compounds, chlorinated solvents, asbestos, photographic wastes, plating sludges, pesticide residues, waste paints and lubricants.	Non-toxic wastes are mostly biodegradable and, after decomposition, become a part of nature.