1.
Which statement represents the harmful effect of depletion of earth's ozone layer?
2.
Which of the following statement is not correct?
3.
Euro II norms were stipulated to control sulphur content at 350 ppm in ...A... and 150 ppm in ...B.... and aromatic hydrocarbons are to be contained at ...C...
Complete the given statement by choosing appropriate option for A-C
4.
World environment day is celebrated on
5.
A lake with nutrients is called
6.
Three mile island and chernobyl disasters are associated with accidental leakage of
7.
Ozone is spread in the swimming pool because
8.
Which of the following methods are useful for solid waste disposal?
I. Open burning
II. Sanitary landfills
III. Rag-pickers and kabadiwallahs
IV. Natural breakdown
V. Recycling
VI. Incineration
Choose the correct option
 
9.
Checking of re-radiating heat by atmospheric dust and water vapours is
10.
Of the following four metropolitan Indian cities, where polluted air hangs above like a cloud is