What is the smallest part of the brain? what is the largest?

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.

In the water cycle , when does water undergo a chemical change

What is the similarities and differences between bacteria and eukaryote?