Page 2 - HA2

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): Micro-organisms are known as decomposers.
REASON (R): Micro-organisms help biodegradable waste to get
mixed with the soil.
6. (a) What is waste? K 3
(b) Write two differences between biodegradable and non-
biodegradable waste.
7. (a) What is toxic waste? A 3
(b) How do these waste affect our environment?
(c) How should we dispose toxic waste? R
8. Give two examples of: A 3
(a) Household waste
(b) Industrial waste
(c) Agricultural waste
9. What is waste segregation? U 5
Why is it important?
Mention what coloured bins are used to dispose different waste.
10. State whether the statements are true or false: A 5
(a) Segregation of waste is not very important.
(b) Plastics are biodegradable waste.
(c) Always throw waste in the dustbin.
(d) Aluminium foil is an example of biodegradable waste.
(e) Decomposers help in decomposing organic materials.

****

2