The use of a lighter instead of matchsticks is a way of c...
The use of a lighter instead of matchsticks is a way of conserving
petroleum
forest
water
wildlife
Correct answer is B
No explanation has been provided for this answer.
DNA in eukaryotic cells is contained in the ...
Our skin, when exposed to excess sunlight, becomes dark. This is because of skin pigments called ...
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The highest level of ecological organization is the ...
The developing embryo is attached to the mother’s uterus by ...
The condition known as cretinism is caused by the deficiency of ...
Evaporation and transpiration are respectively represented by the components labelled ...