Answer 970

Photochemical smog is related to the pollution of -----

(a) soil

(b) water

(c) noise

 

(d) air

4 year ago
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Water pollution is mainly caused by ----

(a) decay of bodies of aquatic animals

(b) industrial effluents

(c) excessive rain

(d) growth of phytoplankton

4 year ago
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pradeep negi

Which one of the following is a greenhouse gas?

(a) carbon dioxide

(b) carbon monoxide

(c) ozone

(d) oxygen

4 year ago
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pradeep negi

The most dangerous metal pollutant of automobile exhaust is---

(a) cadmium

(b) silver

(c) lead

 

(d) manganese

4 year ago
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pradeep negi

 Which of the following is not produced as exhaust of vehicles?

(a) sulphur dioxide

(b) carbon dioxide

(c) carbon monoxide

 

(d) fly ash

4 year ago
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pradeep negi

Taj Mahal is threatened due to the effect of-----(a) chlorine

(b) sulphur dioxide

(c) oxygen

(d) hydrogen

4 year ago
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pradeep negi
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