Question

Which of the following procedures will give you water that is free from all impurities?

• A. it is necessary for existence of life on earth
• B. it is essential for healthy growth of crops
• C. it is needed for everyday activities
• D. all of these

Answer 1

Answer: (A), (B), (C), (D)

The correct options are
A

it is necessary for existence of life on earth

B

it is essential for healthy growth of crops

C

it is needed for everyday activities

D

all of these

All the given options are used to remove impurities from water.
In distillation, water is purified by the process of heating and cooling. In boiling, water is heated at high temperature so that all the microorganism get killed. In filtration, small solids particles are separated with the help of filter paper. Chlorine tablet acts as a disinfectant and kills the germs present in the water.