What 5 kinds of technology did people use to survive the polar environments?

Question

Heres an example that people did use that im not allowed to use in class like the inuit used furs to keep themselves warm.
But actually i need evidence for it.

THANK YOU SOO MUCH and i hope you help

Answer 1

Single-passenger, covered seal-skin boats called qajait (singular qajaq) (first kayaks) for sea hunting and transportation.
Dog sleds and dogs for transportation across snow.
Tools from bone, ivory tusks, and stone.
Boots (Inuktitut: kamik or mukluk) made of caribou or sealskin.
Snow houses (igloos).

http://en.wikipedia.org/wiki/Inuit