insulated material can be used to prevent wasting a lot of what?
sunny days body heat body water heat energy contained areas electricity fever sweats power
A B C D E F G H
Birds waste a lot of body heat trying to keep warm in exposed areas.
insulated material can be used to prevent wasting a lot of body heat.
insulated material can be used to prevent wasting a lot of what? (A) sunny days (B) body heat (C) body water (D) heat energy (E) contained areas (F) electricity (G) fever sweats (H) power