What insulates?
with their fur swamp vegetation copper wire Blankets whale blubber Animal fur steel aluminum foil
A B C D E F G H
Blubber, the fat of the whale, was once much sought after.
whales have blubber to help insulate
What insulates? (A) with their fur (B) swamp vegetation (C) copper wire (D) Blankets (E) whale blubber (F) Animal fur (G) steel (H) aluminum foil