Question 4
Underwater divers wear fin-like flippers on their feet to
(a) swim easily in water.
(b) look like a fish.
(c) walk on water surface.
(d) walk over the bottom of the sea (sea bed).
Option (a).
The fin-like flippers worn by underwater divers help them to swim easily in water. It mainly helps to keep the balance of their body and to keep direction, while swimming.