Ozone hole causes a) Global warming b) Reduction in the rate of photosynthesis c) More UV rays come to earth d) All the above. Answer : c) More UV rays come to earth...
Sound becomes hazardous noise pollution at level a) Above 30 dB b) Above 80 dB c) Above 100 dB d) Above 120 dB. Answer : b) Above 80 dB...
Noise Pollution is measured in a) Hertz b) Fathoms c) Manometers d) Decibels. Answer : d) Decibels....
Increasing high skin cancer and high mutation rate are a) O3 depletion b) Acid rain c) CO pollution d) CO2 Pollution. Answer : a) O3 depletion...
Thermal pollution is more common near a) Hot water springs b) Coal based power plants c) Tropical regions d) Temperate regions. Answer : b) Coal based power plants ...
Water blooms are formed by a) Lemna b) Hydrilla c) Water hyacinth d) Planktonic algae. Answer : d) Planktonic algae....
A green house gas is a) H2 b) CO c) CO2 d) N2. Answer : c) CO2...
SO2 pollution causes a) Plasmolysis b) Destruction of cell wall c) Destruction of Golgi bodies Answer : c) Destruction of Golgi bodies...
Component of smog a) O3 b) PAN c) PPN & PAN d) Both (a) & (b). Answer : d) Both (a) & (b)....
Which Pollutant causes leaf curling a) CO b) H2S c) O3 d) SO2 Answer : d) SO2...
Minamata disease is due to pollutant a) Lead b) Mercury c) Hydrogen Sulphide d) Sulphur dioxide Answer : b) Mercury...
Cadmium damages a) Heart b) Lungs c) Stomach d) Liver and Kidneys. Answer : d) Liver and Kidneys....
The newspaper contains one of the following toxic material a) Mg b) Cd c) Pb d) Hg. Answer : b) Cd ...
Itai-Itai disease is due to the toxicity of a) Lead b) Cadmium c) Strontium d) Tin. Answer : b) Cadmium...
Pollutants released from paddy field is a) CO2 b) CO c) H2O2 d) CH4. Answer : d) CH4....
Eutrophication results in reduction of a) Dissolved nitrate b) Dissolved Oxygen c) Mineral salts d) Parasitic protozoa. Answer : b) Dissolved Oxygen...
Pesticide responsible for Ozone depletion is a) BHC b) DDT c) Melathion d) None of the above. Answer : d) None of the above. ...
Air pollution effects are usually found on a) Flowers b) Leaves c) Stems d) Roots. Answer : b) Leaves...
The worst enemy of ozone is a) Liquid NH3 b) SO2 c) CH4 d) CO. Answer : c) CH4...
Ozone day is observed on a) 25th December b) 16th September c) 21st April d) 30th January. Answer : b) 16th September...
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