Page 2 - 4. HOME ASSIGNMENT

Q.2  For Assertion& Reason question follow the following 01 u
directions.

DIRECTION: Each of these questions contains an 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-Water is contaminated by different chemicals released
from factories.

Reasoning- Some of the chemicals cause skin diseases and
affect nervous system.

Q.3 1 R
Give two examples industrial wastes.

Q.4 a) What is eutrophication? 3 U
b) Why it leads to oxygen depletion in lakes?
c) Name two vectors which spread diseases.
Q5. a) What is water pollution? 1+4 R
b) Describe any four factors which cause water
pollution.

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