IGCSE O Level Biology MCQs - Chapter 7
Effects of Human Activity on Ecosystem Multiple Choice Questions (MCQ) PDF - 6
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The MCQ: In terms of tolerance range for oxygen (O2), Tubifex worms and fish are; "Effects of Human Activity on Ecosystem" App Download Android & iOS (Free) with answers alike, differ, approximately same and opposite to learn e-learning courses. Practice pollution: pesticides and ddt quiz questions, download Apple Book (Free Sample) for colleges that offer online degrees.
Effects of Human Activity on Ecosystem Questions & Answers PDF Download: MCQ Quiz 6
MCQ 26: In terms of tolerance range for oxygen (O2), Tubifex worms and fish are
- differ
- alike
- approximately same
- opposite
MCQ 27: Disadvantages of pesticides includes
- healthier crops
- higher yield of crops
- non-biodegradable pesticides
- availability of more food
MCQ 28: Profuse growth of algae occurs due to
- hydrogen sulphide in water
- nitrates and phosphates in water
- carbon dioxide in water
- chlorine in water
MCQ 29: In which category of resources, metal lies
- renewable resource
- non-renewable resource
- artificial resource
- element
MCQ 30: Cinchona is used in making of
- quinine
- morphine
- pyrethrum
- DDT
IGCSE O Level Biology Mock Tests
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