Question

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

Answer:

Carbon dioxide

Sulphur dioxide

LPG

non biodegradable