Why are green spaces important to urban areas

Which best explains how a heat pump can heat a room? cold air from the house is moved through pipes, where it absorbs thermal energy. warm air from outside is pushed into the house to replace the cold air. combustion warms the air when chemical energy is transferred to thermal energy. fuel is used to move a piston, which pushes warm air into the house.

Penelope studies how the structure and function of the nervous system is related to behavior. she is a psychologist

Restless tectonic plates move (shift) between one and fifteen centimeters per year month day minute