IGCSE O Level Biology Practice Test 170

Recycling: Waste Disposal MCQ (Multiple Choice Questions) PDF - 170

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Recycling: Waste Disposal Questions and Answers PDF Download: Quiz 170

MCQ 846: Central heating systems can be run through

A) more deforestation

B) burning of garbage

C) lesser incinerators

D) cooling water pipelines

MCQ 847: Loss of control of hand and feet occurs due to

A) lead poisoning (Pb)

B) sulfur dioxide (SO₂)

C) nitrogen oxide (NO)

D) carbon dioxide (CO₂)

MCQ 848: Together, HCl (Hydrochloric Acid), rennin and pepsin form the

A) bile juice

B) pancreatic juice

C) gastric juice

D) intestinal juice

MCQ 849: In an ecological community, change in one member

A) affects other population of the community

B) does not affect other populations

C) affects other ecosystems

D) affects other communities

MCQ 850: In ecology ,ecological niche refers to

A) how an organism fits in the environment only

B) how an organism depends on various organisms only

C) how an organism adapts a new environment.

D) how an organism fits in the environment and depends on various organisms

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