Why is the polar region not a suitable habitat for tiny humming birds ?

(A) : Polar region is not a suitable habitat for small humming birds. (R) : They tend to loose body heat very fast when it is cold outside.

Which of the following regions is the original habitat of the ‘Toda Tribe’?

Why is water molecule polar ?

A habitat not suitable for primary productivity is

Assertion: On planet Earth, life exist not just in a few favourable habitats but even in extreme and harsh habitats such as according Rajasthan deserty, perpetually rain-soaked Meghalaya forest, deep ocean trenches, torrential streams, permafrost polar regions, high mountian tops, streams, permafrost polar regions, high mountains tops, boiling thermal springs, and stinking compost pits, etc. Reason: Even our intestine is a unique habitat for hundereds of species of microbes.