Question

(B) Fill in the blanks by selecting appropriate option.


(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

Answer:

1) carbon dioxide

2) sulphur dioxide

3) LPG

4) non biodegradable

Answer 2

Answer:

1: carbon

2: sulphur dioxide

3:LPG

4:non biodegradable