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The first blank is filled with the indefinite article "A" because it refers to a non-specific cart. The second blank is filled with the definite article "the" because it refers to a specific main road.
Identify the metal which is nontoxic in nature.
Which one of the following is not a greenhouse gas?
Natural rubber is the polymer of:
An electric iron has a heating element made of:
The most reactive among the halogens is
Which one of the following contributes largely to the greenhouse effect?
Which of the following is the major constituent of LPG?
The most abundant constituent of atmospheric air is
The mass number of a nucleus is
Which gas is used for converting vegetable oils into saturated fats?