Which of the following is a secondary pollutant?
1. CO
2. ${\mathrm{O}}_3$
3. ${\mathrm{SO}}_2$
4. ${\mathrm{CO}}_2$

World Ozone Day is celebrated on
1. 5th June
2. 22nd April
3. 16th September
4. 21st April

In stratosphere, which of the following elements acts as a catalyst in degradation of ozone and releaseof molecular oxygen?
1. Carbon
2. Oxygen
3. Fe
4. CI

Drinking mineral water with low levels ( ~ 0.02 ppm) of pesticide for long period would
1. Cause cancer of intestine
2. Pesticide accumulation in the body
3. Cause leukaemia
4. Produce immunity against mosquito

Nitrogen oxides formed during emission from automobiles and power plants are a source of fine airparticles which lead to
1. Dry acid deposition
2. Photochemical smog
3. Wet acid deposition
4. Industrial smog

Which one of the following statements pertaining to pollutant is correct?
1. DDT is nonbiodegradable pollutant
2. Excess fluoride in drinking water causes osteoporosis
3. Excess cadmium in drinking water may cause black foot disease
4. Methyl mercury in water may cause ‘’itaiitai’’ disease.

Formation of non functional methaemoglobin causes blue baby syndrome. This is due to
1. Excess of arsenic in drinking water
2. Excess of nitrate in drinking water
3. Deficiency of iron in food
4. Increased methane content in atmosphere

A lake with an inflow of domestic sewage rich in organic waste may result in:

Which award is given to individuals or communities from rural areas that have shown extraordinary courage and dedication in protecting wildlife?
1. Venu Menon Animal Allies Award
2. Amrita Devi Bishnoi Award
3. David Shepherd Wildlife Award
4. The Pledge Award

Which of the following is not a consequence of deforestation?