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Q5. Choose the correct option from the following:
(a) If both Assertion and Reason are correct and Reason is the correct
explanation of Assertion.
(b) If both Assertion and Reason are correct, but Reason is not the correct
explanation of Assertion.
(c) If Assertion is correct but Reason is incorrect.
(d) If Assertion is incorrect but Reason is correct.
If Assertion & Reason both are incorrect.

Assertion (A): To obtain energy, plants also respire.

Reason (R): Plants respire only through the stomata, present abundantly on
the lower surface of leaves.

Q6. In some animals, exchange of gases takes place through its thin and moist
skin. Name one such animal.
Q7. Name one organism which respires anaerobically. How does this organism
help in beverage and baking industry?

Q8. How do plants respire? Explain.

Q9. Frogs are amphibians. They survive both on land as well as in water, do they
have any respiratory issue? How does frog breathe when they are in water?

Q10. Why do the farmers turn the soil before plantation?

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