What type of device is a car engine?
a. a heat pump that uses heat to do work
b. a heat engine that uses work to move heat
c. a heat pump that uses work to move heat
d. a heat engine that uses heat to do work

heat engine that uses work to move heat

mark brainliest  :)

when insulating materials rub against each other, they may become electrically charged . electrons , which are negatively charged, may be 'rubbed off' one material and on to the other. the material that gains electrons becomes negatively charged. the material that loses electrons is left with a positive charge.

the arctic is a region of the planet, north of the arctic circle, and includes the arctic ocean, greenland, baffin island, other smaller northern islands, and the far northern parts of europe, russia (siberia), alaska and canada.