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SAI International School
Class – VII

Subject – Chemistry
Topic – Animal Fibres
Sub-Topic – Health Hazards, Causes its Effects and Prevention

HOME ASSIGNMENT
OBJECTIVE:

S.LN Questions Mark Skill
o.
Q.1 Anthrax is caused by 1 R
a) Protozoa b) Bacteriac) Virus d) Fungus
Q.2 Occupational hazards are due to
a) Work tension b) Adverse work condition c) Contact with 1 K
disease causing germs d) All of these

Q.3 Severe blood infection is caused by 1 R
a) Anthraxb) Asthma c) Skin infection d) Eye irritation
Q.4 -------------------- is a respiratory disease. 1 A
a) Anthraxb) Asthma c) Skin infection d) Eye irritation
Q.5 Anthrax is also called a 1 U
a) Sorter disease b) Respiratory disease c) Allergic
disease d)
None of these
Q.6 Skin allergy is caused due to 1 K
a) Handling of raw silk b)Bacillus anthracis c)
Adverse conditions atworkplaced) None of these
Q.7 Scalds disease caused by workers working in 1 U
a) Reeling of silk b)Weaving of silk c) Spinning of
silk d) None of these.
For Assertion& Reason question follow the following 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.
Q.8 Assertion: Workers associated with various kinds of 1 U&A
ailments called occupational hazard.
Reason: It is due to contact with infectious wool or silk

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