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Biology

Biology
Through Nitrogen fixation process nitrogen in the atmosphere is converted into

Nitrate
Hydroxide
Chlorite
Ammonium

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Biology
O2 released in the process of photosynthesis comes from

CO2
pyruvic acid
sugar
water

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Biology
Damage to hearing is caused by sounds which exceed

70 decibles
100 decibles
80 decibles
120 decibles

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Biology
AIDS is caused by the Human Immunodeficiency Virus (HIV). The transmission of HIV infection generally occurs through

Eating contaminated food and water
Shaking hand with infected person
Inhaling polluted air
Transfusion of contaminated blood and blood products

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Biology
Eutrophication is the result of

Pteridophytes
Algae and aquatic plants
Gymnosperm
Bryophytes

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Biology
All insects have how many parts of legs?

2
6
4
3

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MORE MCQ ON Biology

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