Page 2 - HA1

8. This came up as a boon but is now a bane.
a. Glass
b. Plastic
c. Fertilizer
d. Medicine

Subjective:

Q. Questions Skill Marks
No.
1. Name the type of waste composting that requires red R 1
worms.

2. How are micro-organisms helpful in waste disposal? U 1

3. DIRECTION: Each of these questions contains an A 1
Assertion followed by Reason. Read them
carefully and answer the question on the basis
of following options. You have to 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): Toxic waste has adverse effect on nature.
Reason (R): Toxic waste contain carcinogenic substances.
4. (a) What is compost? K 3
(b) How is it useful?
(c) What is vermicomposting?
5. Land filling is a method of disposing waste. A 5
(a) What is land filling?
(b) What should we consider when we use land filling for
disposing waste?
(c) How can land filling be useful to us?
(d) What type of waste can be used for land filling?
(e) Name another method by which we can dispose
biodegradable waste.

2