Question

Write three adaptive features found in a polar bear which help in keeping it warm in adversely

cold conditions.​

Answer 1

when a body is in contact with another body and some normal force acts then if any force is applies on then which causes relative motion between them, a resisting force will act called frictional force. Up to a point when motion does not start the friction acting is called static friction, once the motion starts then resisting force acting slightly decreases [call dynamic friction force.

so the force required to overcome to start a motion is static frictional force.

Answer 2

Answer:

The polar bear

thick layers of fat and fur - for insulation against the cold. a small surface area to volume ratio - to minimise heat loss. a greasy coat that sheds water after swimming - to help reduce heat loss. large feet - to distribute their load and increase grip on the ice.

Explanation: