The water strider is an insect that skates across the water without sinking. the tips of its feet must be coated with molecules that are

The correct answer is microscopic hairs.

Explanation:

For avoid the sinking, the legs of the water strider have a thousands of microscopic hairs with tiny groves. In consequence, the presence of this huge amount of microscopic hairs increases the water resistance of the water strider's feets, resulting in an increase of the general buoyancy of the water strider.

3 1/4 %

explanation: