PU GS 2026 Environment and Ecology Free Quiz 1

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PU GS 2026 Environment and Ecology Free Quiz 1

PU GS Quiz

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General 10 MCQs

1. What is an ecosystem?

A. Community of organisms interacting with environment B. Only living organisms C. Only non-living things D. Single species

2. What does a food chain show?

A. Flow of nutrients B. Flow of water C. Flow of energy D. Flow of gases

3. What is a food web?

A. Single food chain B. Network of interconnected food chains C. Energy pyramid D. Water cycle

4. What is biodiversity?

A. Number of species only B. Number of habitats only C. Total population D. Variety of life forms

5. What is conservation?

A. Protection of environment B. Destruction of environment C. Pollution of environment D. Exploitation of resources

6. What is pollution?

A. Protection of environment B. Preservation of environment C. Contamination with harmful substances D. Recycling

7. What is global warming?

A. Decrease in temperature B. Increase in temperature C. No change in temperature D. Irregular temperature

8. What is climate change?

A. Short-term weather changes B. Daily temperature changes C. Seasonal changes D. Long-term changes in weather patterns

9. What are producers in an ecosystem?

A. Plants (autotrophs) B. Animals (heterotrophs) C. Fungi D. Bacteria

10. What are primary consumers?

A. Carnivores B. Omnivores C. Herbivores D. Decomposers

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