The vast resources of unutilised natural gas can be used in the production of

Paper is manufactured by

Gypsum is added to cement clinker to

Soap is a mixture of sodium or potassium salts of

The type of glass used in making lenses and prisms is

Which one of the following is the petroleum wax?

What cause a moving body to resist a change in its state of motion?

BACK TO VILLAGES slogan was given by:

AIDS is caused by:

Which of the following schemes is launched for the school going children?