Class 10 Biology MCQs – Practice Test 30 (Chapter 7)

Man and Environment MCQ with Answers PDF Download – Test 30

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Man and Environment MCQ – Practice Test 30 PDF Download

MCQ 146: For all ecosystems, the major source of energy is:

galaxies
universe
sun
moon

MCQ 147: The perfect biogeochemical cycle is:

nitrogen cycle
sulphur cycle
carbon cycle
oxygen cycle

MCQ 148: Unwanted, unpleasant sounds are called:

bad sounds
noise
unpleasant sounds
unwanted sounds

MCQ 149: The consumers of an ecosystem are classified as:

herbivores only
carnivores only
aquatic carnivores
herbivores and carnivores

MCQ 150: The nitric acid (HNO₃) and nitrous acid (HNO₂) are combined with different salts to produce:

nitrates
nitric acid and hydrogen
carbon and oxygen
carbon dioxide

Man and Environment MCQ App & e-Book – Class 10 Biology Entrance Exam

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