Page 2 - HA 1OBJ

3. Choose the correct option from the following: U 1
(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): Carbon dioxide is an important greenhouse gas.
Reason (R): Excess of carbon dioxide in nature is good for us.
4. What is acid rain? How is it caused? R + 1 +2=
U 3

5. Write down the effects of air pollution. R 5

2