Page 2 - HA2

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.
e) If Assertion & Reason both are incorrect.
ASSERTION (A): Water logging is common in clayey soil.
REASON (R): Clayey soil has minimum water retaining capacity.
6. (a) What is crop rotation? K 3
(b) What is its importance?
(c) How does growing crops like peas and soya beans helpful?
7. A percolation pipe is filled with soil A. Water (50ml) is then poured A 3
steadily onto the surface of the soil.
It takes 10 minutes from the start of pouring for the water to R
disappear below the surface of the soil.
What is the percolation rate for soil A?
8. ‘Scientific farming practices maintain the health of soil’- Justify by HOTS 3
providing suitable reasons.

9. Give Reasons: HOTS 5
(a) Water kept in mud pots remain cool in summers.
(b) Water does not percolate through cemented floor.
(c) Water logging is common in clayey soil.
(d) Microbes present in soil are beneficial for it.
(e) Few types of plants are found in desert region.
10. Arjun has a garden and he takes a lot of care for his plants. HOTS 5
(a) What type of soil is preferred for gardening?
(b) Why is this type of soil preferred?
(c) He often digs the soil. Why do you think it is important?
(d) His mother said overwatering the plants will kill them. Why
do you think so?
(e) He has a pit where he collects fallen leaves and vegetable
peels. Why does he do this?

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