______________occurs when heated water enters a river or stream.

Burning of carbonaceous compounds give

Iron is electroplated with nickel and chromium by the process of electrolysis is called

Bring a glowing splinter near the open end of the aniodic limb during the electrolysis of water. The splinter bursts into flames. The gas is

Which causes kidney, pulmonary and skeletal diseases?

The substance that dissolves in water or in any other liquid is called as

Which is unfit for washing as a lot of soap is wasted?

The purified water that reaches the home can be made still safer to drink by

Which is known as universal solvent?

The contamination of water with soluble salts, sewage and industrial wastes which eventually destroys the balance of life in a stream is defined as