Man and Environment Multiple Choice Questions 17 PDF Download
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MCQs on Man and Environment Quiz PDF Download Worksheets 17
MCQ. Nitrogen fixation is conversion of nitrogen gas to
- Nitric acid
- Nitric oxide
MCQ. Organisms who kills, attacks and feeds others are called
MCQ. Excess burning of fossil fuels leads to increased carbon dioxide which results in
- greenhouse effect
- global warming
- both a and c
MCQ. Ecological pyramid concept was proposed by Charles Elton in
MCQ. Ultraviolet rays in radiations of sun is absorbed by