Choose the correct alternative for the given relation.

Water : Convection : : Space : ?

Choose the correct alternative for the given relation.

Thrust : Spear

Choose the correct alternative for the given relation.

Aeroplane : Cockpit : : Train : ?

Insomnia is to Lead as Minamata is to..........

Choose the correct alternative for the given relation.

Hair : Brush : Wig

Choose the correct alternative for the given relation.

Steering : Car