Negative soil pollution includes over use of soil and erosion, Methanemoglobinaemia is caused due to laughing gas

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Free Online Mock Biology Multiple Choice Test on Organism and Environment

Sub Category : Organism and Environment	Test : 10	Time Left :
1.Negative soil pollution includes
(1) Over use of soil and erosion (2) Use of pesticnes and weedicnes (3) Both (a) and (b) (4) Industrial wastes
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2.Methaemoglobinaemia is caused due to
(1) CH4 (2) Natural gas (3) Laughing gas (4) Mustard gas
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3.The phenomenon of producing adverse ecological effects of substance or action in later period is called ecological
(1) Bomerang (2) Backlash (3) Both (1) and (2) (4) None of these
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4........is mistaken for calcium and enters bone and cause bone cancer?
(1) Sr (2) Radioactive Sr-90 (3) Radioative radium (4) Both (1) and (3)
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5.Radiations from outer space does not constitute health hazard because?
(1) They are harmless (2) Only 0.1% radiations reach the earth annually (3) They are useful as they provide energy and heat (4) All the above

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Free Online Mock Biology Multiple Choice Test on Organism and Environment