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7. Water ________ on freezing. U 1

a. Expands
b. Contracts
c. Remains as it is
d. Liquefies
8. Minerals such as nitrates, sulphates and phosphates are R 1
present in the ______.

a. Parent rock
b. Water
c. Atmosphere
d. Air
9. DIRECTION: Each of these questions contains an U & A 1
Assertion followed by Reason. Read them carefully
and answer the question on the basis of following
options. Select the one that best describes the two
statements.

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 is an important weathering agent.

Reason(R): The process of weathering takes millions of
years for soil formation.

Subjective:
Q. Questions Skill Marks
No.

1. Name the organic matter present in the soil. R 1

2. Write the names of two minerals found in soil. U 1

3. Which layer of the soil is fertile and why? U 1

4. (a) What is soil? U&R 3

(b) What is soil composed of?

(c)Name the layer of soil containing minerals.

5. What is weathering? Name the agents responsible for U 5
weathering process. Explain the process of soil formation.

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