Which is the best description of a molecule? A-) a molecule of an element is composed of at least two types of atoms.
B-) a molecule of a compound is composed of only one type of atom.
C-) a molecule of a compound is composed of at least two types of atoms.
D-) a molecule of an element is composed of exactly two types of atoms.

C: a molecule of a compound is composed of at least two types of atoms.

1) when you rub your hands together quickly, the kinetic energy is converted to mechanical energy.2) thermal energy from the sun travels to earth as infrared waves.3) energy is transferred through the matter of space by electromagnetic waves. 4) when a match is burned, chemical potential energy is converted to thermal and radiant energy. 5) seismicwaves are caused by back and forth movement , or vibration, of an object. 6) mechanicalenergy in an engine changes thermal energy into kinetic energy to make a car move.