PU GS 2026 Environment and Ecology Free Quiz 2

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PU GS 2026 Environment and Ecology Free Quiz 2

PU GS Quiz

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Remaining: 10

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General 10 MCQs

11. What are secondary consumers?

A. Herbivores B. Carnivores that eat primary consumers C. Omnivores D. Decomposers

12. Which organisms break down dead organisms?

A. Producers B. Consumers C. Scavengers D. Decomposers

13. What does the ozone layer protect the Earth from?

A. UV radiation B. Visible light C. Infrared radiation D. Radio waves

14. What are renewable resources?

A. Cannot be replenished B. Are always available C. Can be replenished naturally D. Never deplete

15. What are non-renewable resources?

A. Can be replaced B. Cannot be replaced once used C. Are unlimited D. Are always available

16. What is the greenhouse effect?

A. Cooling of Earth B. Trapping of cold C. Trapping of light D. Trapping of heat

17. Which gas is a greenhouse gas?

A. Carbon dioxide B. Oxygen C. Nitrogen D. Hydrogen

18. What does an ecological pyramid show?

A. Number of species B. Population size C. Energy or biomass distribution D. Food availability

19. What does deforestation lead to?

A. Increases biodiversity B. Leads to loss of biodiversity C. Has no effect D. Improves air quality

20. What is sustainable development?

A. Exploits all resources B. Ignores future generations C. Focuses only on economic growth D. Meets present needs without compromising future

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