Class 10 Biology MCQs - Chapter 7

Man and Environment MCQ (Multiple Choice Questions) PDF - 30

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Man and Environment Questions & Answers PDF Download: MCQ Quiz 30

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

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