Premature fall of leaves and fruits is caused by unsaturated hydrocarbons, First week of October month is dedicated as wild life week

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Free Online Mock Biology Multiple Choice Test on Organism and Environment

Sub Category : Organism and Environment	Test : 2	Time Left :
1.Which is not a green house gas?
(1) CO2 (2) H2 (3) CFC (4) Methane
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2.PAN (Peroxyacetyl Nitrate) is known to
(1) Increase the rate of photosynthesis (2) Cause the death of plant by checking respiration (3) Cause the death of plant by checking hill reaction (4) None of these
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3.Premature fall of leaves and fruits is caused by
(1) Flow weeds (2) Unsaturated hydrocarbons (3) Fly ash (4) Aerosol
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4.First week of which month is dedicated as wild life week?
(1) August (2) September (3) October (4) March
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5.pF value of saturated soil is?
(1) 0 (2) 2 (3) 4.2 (4) 7

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Free Online Mock Biology Multiple Choice Test on Organism and Environment