What is true about electromagnetic waves that is NOT true about mechanical waves? A. Electromagnetic waves have lots of energy
B. Electromagnetic waves can not travel in vacuum
C. Electromagnetic waves have high frequencies
D. Electromagnetic are made up of massless particles

What term describes technology that operates on an atomic level

Which of these features are formed when hot groundwater is forced out through cracks in the earth's surface?

Asubstance is held in an open container. its particles move past one another at random speeds but do not leave the container. heat is removed from the system, and the particles slow down. when enough heat is removed, the particles no longer have enough speed to overcome the weak attractive forces between them. when this happens, the substance enters its solid state. the process described above is known as .