The process of improving the quality of rubber by heating it with sulphur is called

• vulcanization

• acceleration

• sulphonation

• galvanization

One of the best solutions to get rid of non-biodegradable wastes is

• burning

• dumping

• burying

• recycling

Vermicomposting is done by

• fungus

• bacteria

• worms

• animals

If waste materials contaminate the source of drinking water, which of the following diseases will spread?

• Scurvy

• Typhoid

• Malaria

• Anaemia

India exports power to

• Bangladesh

• Myanmar

• Pakistan

• Bhutan