What is plate tectonics?
a. the theory that earth's surface does not change.
b. the theory that earth's surface will eventually become hotter over time.
c. the theory that the thickness of earth's crust will even out over time and become flat.
d. the theory that earth's crust is composed of many plates that are moving slowly over time.

Under what conditions will a gas be most likely to exhibit the ideal gas properties predicted by the ideal gas law? 1)high pressures and high temperature, because particles are forced closer together with higher kinetic energy, so intermolecular forces of attraction are weaker 2)high pressure and low temperature, because particles are forced closer together and moving slower, so the volume of the particles is less significant 3) low pressure and high temperature, because particles are spread farther apart and moving faster, so the intermolecular forces of attraction are weaker 4)low pressure and low temperature, because particles are spread farther apart with lower kinetic energy, so the volume of the particles is less significant