Class 10 Biology Competitive Exam MCQs – Practice Test 5 (Chapter 7)

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Free "Man and Environment Study" App Download: Small fish and crustaceans are also used to kill the larvae of; MCQ with answers: aphids, butterfly, mosquitos, and pupa. Solve Conservation of Nature MCQ Questions, download Google e-Book (Free Chapter) to attend biology lectures.

Man and Environment MCQs – Practice Test 5 PDF Download

MCQ 21: Small fish and crustaceans are also used to kill the larvae of:

butterfly
aphids
mosquitos
pupa

MCQ 22: The combination of atmospheric nitrogen with hydrogen under high temperature and pressure is classified as:

atmospheric oxygen fixation
atmospheric nitrogen fixation
industrial nitrogen fixation
biological nitrogen fixation

MCQ 23: The conversion of gaseous nitrogen into the nitrates with the help of bacteria is classified as:

biological oxygen fixation
atmospheric oxygen fixation
atmospheric nitrogen fixation
biological nitrogen fixation

MCQ 24: The process of denitrification returns nitrogen into the:

ecosystem
atmosphere
biosphere
organism

MCQ 25: The atmospheric gaseous nitrogen is converted during lightning and thunderstorms into:

oxides of carbon
oxides of oxygen
oxides of nitrogen
nitric acid

Man and Environment MCQs App & e-Book – Class 10 Biology Competitive Exam

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Man and Environment MCQs

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