The common nitrogen fixing bacteria found in acnic soils Beijerinckia, Organic matter gets decomposed rapnly in Tropical soil

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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.The property of soil due to which it behaves like a plastic is
(1) Soil plasticity (2) Tenacity (3) Fenacity (4) Both (1) and (2)
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2.Organic matter gets decomposed rapnly in
(1) Tundra soil (2) Tropical soil (3) Temperate soil (4) Soil has no effect on organic decomposition.
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3.Cementing of soil-particles by inorganic salts and gums produces
(1) Soil crumbs (2) Soil blooms (3) Soil puffs (4) Both (1) and (2).
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4.The common nitrogen fixing bacteria found in acnic soils is?
(1) Tolyphthrix (2) Beijerinckia (3) Both (1) and (2) (4) None of them.
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5.Mycotrophy is present in?
(1) Corallorhiza (2) Neottia (3) Pinus (4) Both (1) (2).

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Free Online Mock Biology Multiple Choice Test on Organism and Environment