Mention how do bears escape from stressful time in winter.

Snails escape from stressful time in summers by

How does a squid escape from a predator?

Trace the pathway followed by water molecules from the time it enters a plant root to the time it escapes into the atmosphere from a leaf.

Why do birds swell their feathers in winter?

Why do we shiver during winter?

Why do the machine parts get jammed in winter?

Why do old people shiver more in winter when compared to youngsters? Is there any special arrangement to prevent the escape of heat energy during winter?