What is a consumer in an ecosystem?

An organism that breaks down dead material

An organism that consumes other organisms

An organism that feeds on consumers

An organism that produces its own food

What is a decomposer in an ecosystem?

An organism that breaks down dead material

An organism that consumes other organisms

An organism that feeds on producers

An organism that produces its own food

What is a food chain?

A network of interconnected food chains

A series of organisms each dependent on the next as a source of food

A series of organisms that decompose organic matter

What is the role of decomposers in an ecosystem?

Break down dead material and recycle nutrients

Consume other organisms for energy

Recycle nutrients into the ecosystem

What is biological magnification?

Accumulation of chemicals in organisms

Increase in the concentration of harmful substances

Increase in the number of decomposers

Reduction in the concentration of pollutants

What is the ozone layer?

A layer that causes global warming

A layer that protects Earth from UV radiation

A layer that protects Earth from meteors

A layer that protects Earth from pollution

What is waste management?

The process of disposing of waste

The process of handling waste materials

The process of reusing materials

What is biodegradable waste?

Waste that can be broken down by microorganisms

Waste that cannot be broken down by microorganisms

What is non-biodegradable waste?

Waste that can be broken down by microorganisms

Waste that cannot be broken down by microorganisms

The process of burning waste materials

The process of converting waste into reusable material

The process of dumping waste materials

The process of reducing waste production

What is the purpose of a landfill?

A site for burning waste materials

A site for composting organic waste

A site for recycling waste materials

A site for the disposal of waste materials

What is the impact of plastic waste on the environment?

Pollutes the environment and harms wildlife

Provides habitat for marine life

What is the significance of the 3Rs (Reduce, Reuse, Recycle)?

Encourages sustainable waste management

What is the role of government regulations in waste management?

Creates waste disposal facilities

Ensures proper disposal of waste

What is the impact of electronic waste on the environment?

Creates jobs in waste management

Releases toxic substances into the environment

What is the significance of clean energy in environmental protection?

Reduces pollution and conserves resources

NCERT Solutions Class 10 Science Chapter 13 – Our Environment

Name: Our Environment – Class 10 Science
Uploaded: 2026-04-15
Description: Our Environment

Class 10 Science

Last Updated: 15 April 2026

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Practice MCQ Questions (29 questions)

Q1. What is an ecosystem?

Q2. What are the two main components of an ecosystem?

Q3. What is a biotic component?

Q4. What is an abiotic component?

Q5. What is a producer in an ecosystem?

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NCERT Solutions Class 10 Science Chapter 13 – Our Environment

Watch Video Lecture

Important Points

Practice MCQ Questions (29 questions)

Q1. What is an ecosystem?

Q2. What are the two main components of an ecosystem?

Q3. What is a biotic component?

Q4. What is an abiotic component?

Q5. What is a producer in an ecosystem?

Q6. What is a consumer in an ecosystem?

Q7. What is a decomposer in an ecosystem?

Q8. What is a food chain?

Q9. What is a trophic level?

Q10. What is the first trophic level in a food chain?

Q11. What is the second trophic level in a food chain?

Q12. What is the third trophic level in a food chain?

Q13. What is the role of decomposers in an ecosystem?

Q14. What is biological magnification?

Q15. What is the ozone layer?

Q16. What causes the depletion of the ozone layer?

Q17. What is the effect of UV radiation on living organisms?

Q18. What is waste management?

Q19. What is biodegradable waste?

Q20. What is non-biodegradable waste?

Q21. What is recycling?

Q22. What is the purpose of a landfill?

Q23. What is the impact of plastic waste on the environment?

Q24. What is the significance of the 3Rs (Reduce, Reuse, Recycle)?

Q25. What is the role of government regulations in waste management?

Q26. What is the impact of electronic waste on the environment?

Q27. What is the function of a sewage treatment plant?

Q28. What is the significance of clean energy in environmental protection?

Q29. What is the impact of deforestation on the environment?

Frequently Asked Questions (FAQ)

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