Monthly Chit Test
CBSE-X (2020)
Max M-06
A) Multiple choice Questions :-
+) The functional unit of environment is o
a) Ecosystem
6) Nitrogen
c) Carbon
d) Oxygen
2)
is not a biodegradable pollutant.
a) Paper
b) Cotton cloth
c) Cotton
d) DDT.
3) Give
any
three methods to reduce the problems
of waste disposal ? ②
4) Distinguish between biodegradable and non-
biodegradable substances
2
Answers
Answer:
A)a.Ecosystem
B)d. DDT
Explanation:
1) The functional unit of environment is known as the Ecosystem.
2) DDT is not a biodegradable pollutant.
3) * By minimizing the use of disposal items and
promoting the use of recycled articles.
* Separating biodegradable and
nonbiodegradable waste before dumping
them.
* Recycling the nonbiodegradable material.
4) Biodegradable materials are those , which degrade or break down in a natural manner.
fruit, vegetables, flowers, plants, paper are examples. They transform into simpler units and then we use them as fertilizers,compost,biogas and more
Nonbiodegradable substances are those which do not easily decompose by natural factors.
It is a kind of waste that cannot be decomposed by biological processes. plastic and artificial wastes are nonbiodegradable.
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