Which substance is made of molecules?
a. water
b. table salt
c. aluminum foil
d. pure gold necklace

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

An electric clothes dryer has a resistance of 8 ohms. it draws 30 a of current. what is the voltage, in volts, of the wall outlet that it is plugged into?

More solar radiation is absorbed by earth’s surface than by