IGCSE O Level Biology MCQs – Mock Test 170

Recycling: Waste Disposal MCQs with Answers PDF Download – Test 170

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MCQ: 846

Central heating systems can be run through

more deforestation
burning of garbage
lesser incinerators
cooling water pipelines

MCQ: 847

Loss of control of hand and feet occurs due to

lead poisoning (Pb)
sulfur dioxide (SO₂)
nitrogen oxide (NO)
carbon dioxide (CO₂)

MCQ: 848

Together, HCl (Hydrochloric Acid), rennin and pepsin form the

bile juice
pancreatic juice
gastric juice
intestinal juice

MCQ: 849

In an ecological community, change in one member

affects other population of the community
does not affect other populations
affects other ecosystems
affects other communities

MCQ: 850

In ecology ,ecological niche refers to

how an organism fits in the environment only
how an organism depends on various organisms only
how an organism adapts a new environment.
how an organism fits in the environment and depends on various organisms

Recycling: Waste Disposal Study Material – IGCSE O Level Biology App & e-Book MCQ

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