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SAI INTERNATIONAL SCHOOL
CLASS - VI
SUBJECT - CHEMISTRY
TOPIC – WASTE AND ITS MANAGEMENT
SUB-TOPIC – MANAGING BIODEGRADABLE WASTE

PRACTICE WORKSHEET

Q. Questions Skill Marks
No.
1. Which of the following statements refers to non-biodegradable waste? A 1
(a) Plant matter
(b) Made from chemicals
(c) Can be decomposed
(d) Vegetable and fruit peels
2. Compostable waste should be collected in ________ coloured bins. R 1
(a) Red
(b) Blue
(c) Green
(d) Black
3. __________ waste are decomposed by micro-organisms. A 1
(a) Plastic
(b) Biodegradable
(c) Non-biodegradable
(d) Toxic
4. DIRECTION: Each of these questions contains an Assertion A 1
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): Composting is a method of waste management.
REASON (R): Composting changes organic waste into useful
manure.
5. DIRECTION: Each of these questions contains an Assertion A 1
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.

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