Fill in the blanks by selecting appropriate option. (4)
(1) . . . . . . . . . gas is responsible for global warming. (Oxygen, Nitrogen, Carbon
dioxide)
(2) …………………….. gas is present in acid rain. (Biogas, Sulphur dioxide, Carbon dioxide)
(3) . . . . . . . . . fuel is less polluting. ( LPG, Dung cake, Wood.)
(4) Plastic is a …………………. substance and should be used wisely. (non biodegradable,
biodegradable, biological)
Answers
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Answer:
Carbon dioxide
Sulphur dioxide
LPG
non biodegradable
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