Find the odd number

Select the odd words from the given alternatives.

An ‘Island’ is related to ‘Sea’ in the same way as an ‘Oasis’ is related to ‘_____’.

Direction: In the following, select the related word from the given alternatives.
Heat : Convection :: Space : ?

Direction: In the following, select the related word from the given alternatives.
Antiseptic : Germs :: Antidote : ?

Knoll : Hill :: Eclogue: ?

Enough: Sufficiency :: Excess:?

Select the word-pair in which the two words are related in the same way as the two word-pair.

Author: Book