Chemistry
Grade-6
Easy
Question
Match column A(pollutants) with column B(sources).
Column A |
Column B |
(a) Ammonia |
(i) Fossils fuels |
(b) Black carbon |
(ii) Fertilizers |
(c) Formaldehyde |
(iii) Cigarettes |
(d) Smoke |
(iv) Disinfectants |
- (a) – (iv), (b) – (iii), (c) – (i), (d) – (ii)
- (a) – (iv), (b) – (iii), (c) – (ii), (d) – (i)
- (a) – (ii), (b) – (i), (c) – (iii), (d) – (iv)
- (a) – (ii), (b) – (i), (c) – (iv), (d) – (iii)
Hint:
a) Fertilizers fix the soil and make it rich in nutrients.
b) We all and most things are mainly carbon.
c) Contains organic compounds.
d)Cigarette smoke is harmful.
The correct answer is: (a) – (ii), (b) – (i), (c) – (iv), (d) – (iii)
The correct option is (a) – (ii), (b) – (i), (c) – (iv), (d) – (iii)
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