Page 2 - HA

Subjective Questions:-
Q. No. Questions Skill Marks
1. Which gas is the main cause of global warming and is useful to U 1
the plants as well?

2. What are the two byproducts of burning wood, that makes it U 1
unsuitable to be used as a fuel?

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): Wood is not considered as a good fuel.
Reason (R): Wood has a higher calorific value than LPG
4. Write down three advantages of using LPG. R 3

5. What are the harmful effects of burning fuels?(Write at least 5 U 5
points)

2