Class 10 Biology MCQs - Chapter 7

Man and Environment Multiple Choice Questions PDF Download - 17

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The Multiple Choice Question (MCQ Quiz): Nitrogen fixation is the conversion of nitrogen gas to; "Man and Environment" App Download (Free) with answers nitrites, nitrates, nitric acid and nitric oxide to study online certification courses. Solve levels of ecological organization quiz questions, download Google eBook (Free Sample) for free online courses.

Man and Environment Questions & Answers PDF Download: MCQ Quiz 17

MCQ 81: Nitrogen fixation is the conversion of nitrogen gas to

A) nitrates

B) nitrites

C) nitric acid

D) nitric oxide

MCQ 82: The organisms who kills, attacks and feeds others are called

A) prey

B) predators

C) assimilators

D) competitors

MCQ 83: The excess burning of fossil fuels leads to increased carbon dioxide which results in

A) greenhouse effect only

B) global warming only

C) acidic rain

D) green house effect and global warming

MCQ 84: The ecological pyramid concept was proposed by Charles Elton in

A) 1927

B) 1930

C) 1935

D) 1938

MCQ 85: The ultraviolet rays in the radiations of the sun are absorbed by

A) troposphere

B) thermosphere

C) stratosphere

D) ozone

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