CNG is a

Chlorofluorocarbon is used in

Which of the following is a green house gas?

Which of the following is not a source of air pollution?

The type of pollution which is likely to affect Taj Mahal in Agra to a greater extent is

Incomplete combustion of fuel such as petrol and diesel gives

The phenomenon of marble cancer is due to

Trees help in reducing the pollution of our environment. Lakhs of trees are planted by people in the month of July every year. The occasion is called

Which of the following is not a greenhouse gas?

which of the following is the capacity of green house gases

which of the following is responsible for depletion of ozone layer?

smoke combines with water vapours and dust particles, in the presence of sunlight to form

Retardation of photosynthetic activity in plants is the harmful effect of

The phenomena of corrosion of marbles of the monument, by acid rain, is called