Environmental Issues

Which of the following is formed by the reactions of UV-rays of sunlight?

• SO₂

• CO

• Ozone

• Florides

Which of the following statement is correct about DDT

• It is a biomagnifying biodegradable pollutant

• It is non biomagnifying biodegradable pollutant

• It is biomagnifying non biodegradable pollutant

• It is not a pollutant

The sphere of living matter together with water, air and soil on the surface of earth is called

• atmosphere

• hydrosphere

• lithosphere

• biosphere

CO is a pollutant because

• it reacts with O₂

• it inhibits glycolysis

• it reacts with haemoglobin

• it makes nervous system inactive

In almost all Indian metropolitan cities like Delhi, the major atmospheric pollutant(s) is/are:

• suspended particulate matter (SPM)

• oxides of sulphur

• carbon dioxide and carbon monoxide

• oxides of nitrogen

Drinking of mineral water with very low level of pesticides (about 0.02 ppm) for long periods may:

• produce immunity against mosquito

• cause leukemia (blood cancer) in most people

• cause cancer of the intestine

• lead to accumulation of pesticide residues in body fat

Green muffler is used against which type of pollution ?

• Air

• Soil

• Water

• Noise

Which country has the greatest contribution for the hole formation in ozone layer?

• USA

• Germany

• Russia

• Japan

Which of the following is not a pollutant?

• Hydrogen

• Carbon dioxide

• Sulphur dioxide

• Carbon monooxide

Main air pollutant is :

• CO

• CO₂

• S

• N₂