1.

(B) 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)​

Answer»

1. CARBON DIOXIDE

2.carbon dioxide

3.LPG

4.Non BIODEGRADABLE



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