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PU GS Practice General Science Environment and Ecology MCQs Test 1

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PU GS Practice General Science Environment and Ecology MCQs Test 1

Practice PU GS 2026 General Science MCQs from Environment and Ecology. Get instant results with Explanation.

General10 MCQs

1. What is an ecosystem?

A. Community of organisms interacting with environmentB. Only living organismsC. Only non-living thingsD. Single species

2. What does a food chain show?

A. Flow of nutrientsB. Flow of waterC. Flow of energyD. Flow of gases

3. What is a food web?

A. Single food chainB. Network of interconnected food chainsC. Energy pyramidD. Water cycle

4. What is biodiversity?

A. Number of species onlyB. Number of habitats onlyC. Total populationD. Variety of life forms

5. What is conservation?

A. Protection of environmentB. Destruction of environmentC. Pollution of environmentD. Exploitation of resources

General10 MCQs

6. What is pollution?

A. Protection of environmentB. Preservation of environmentC. Contamination with harmful substancesD. Recycling

7. What is global warming?

A. Decrease in temperatureB. Increase in temperatureC. No change in temperatureD. Irregular temperature

8. What is climate change?

A. Short-term weather changesB. Daily temperature changesC. Seasonal changesD. Long-term changes in weather patterns

9. What are producers in an ecosystem?

A. Plants (autotrophs)B. Animals (heterotrophs)C. FungiD. Bacteria

10. What are primary consumers?

A. CarnivoresB. OmnivoresC. HerbivoresD. Decomposers

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