TRACK YOUR PROGRESS
3. State TRUE or FALSE.
a. Natural gas has a characteristic odour.
b. Natural gas is heavier than air.
c. Synthetic fibres, polymers and dyes are synthesised from
petrochemicals.
d. We should use conventional bulbs instead of LEDs.
e. Emission of carbon dioxide gas during burning of fossil fuels
cause global warming.
Coal and Petroleum
2) Chapter-5>
Answers
Answered by
9
Answer:
a. true. b. true.c. true. d. true. e. true
Answered by
8
Answer:
a. true
b. true
c. true
c. true
d. true
e. true
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