The geologic time scale began when Earth was formed & continues until present day. At the end of each Era a occurred and every single one of a fill in the blanks :)

simple and short because this is 8th grade science and I don't want the answer to be sus :D

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.

What is the name of the type of cell division that occurs in the prokaryotic cell cycle

Witch theory suggests all living things are made up of cell or cells