ORS should be stored for more than

Which one of the following diseases spread through infected food and water?

Organic wastes can be disposed of by

Pieces of bricks and sand are put at the base of the soakage pit to make the base _____________.

Which one of the following should NOT be done to keep our surroundings clean?

Decayed garbage can be used as

Germs present in water can be killed by

To protect ourselves from diseases, sewage should be disposed off in

What should be sprayed on stagnated water to prevent breeding of mosquitoes?

Observe the chart given below

Which one of the following cannot be recycled?