Which features adapt polar bears to live in extremely cold climate? (i) A white fur, fat below skin, keen sense of smell. (ii) Thin skin, large eyes, a white fur. (iii) A long tail, strong claws, white large paws. (iv) White body, paws for swimming, gills for respiration.
The correct option for this question will be A white fur, fat below skin, keen sense of smell which helps the polar bear to survive in extreme cold.