(Question)
An electrical insulator slows the transfer of electricity, and furthermore, the coating is an excellent electrical insulator. Given these facts, a coating does what to the transfer of electricity among the following options: - amplifies - energy - heat - causes - slows - reduce - enables - retina
(Answer)
slows

(Question)
Trees have woody stems covered with bark, and bark on mature trees runs 6 to 12 inches thick, insulating the tree against fire damage. Given these facts, what do trees have that insulates among the following options: - hats - looseness - dogs - woody stems - food and shelter - cells - storing water - In their leaves
(Answer)
woody stems

(Question)
Hearing is used for sensing sound by animals, and all sound is caused by vibrations. Given these facts, hearing is used for sensing _ by animals among the following options: - A Greek letter - waves - vibrations - motion - messengers - humans - four limbs - some mammals
(Answer)
vibrations