Practice Questions - 13.3 | 13. Our Environment | CBSE 10 Science
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13.3 - Questions

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

Define trophic levels.

💡 Hint: Think about energy flow from producers to consumers.

Question 2 Easy

What role do decomposers play in an ecosystem?

💡 Hint: Consider what happens to dead plants and animals.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What are trophic levels?

Levels of economic income
Positions of organisms in a food chain
Tree growth stages

💡 Hint: Remember what defines a food chain.

Question 2

True or False: Decomposers are not essential for ecosystems.

True
False

💡 Hint: Consider what happens to dead organisms without decomposers.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Consider a local pond ecosystem. Describe what would happen if a chemical spill killed all the fish (secondary consumers) and plants (producers).

💡 Hint: Think about the roles of each organism in maintaining ecological balance.

Challenge 2 Hard

You're tasked with creating a new ecosystem model using plastic and clay. How would you represent the impact of decomposers in your model?

💡 Hint: Consider adding components that show changes over time.

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