Pink quartz and smoky quartz are different colors. they will both have the same
color streak
chemical composition
crystal size
luster

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

Drug abuse will not lead to physical and psychological dependence. true or false ?

What happens to the average kinetic energy of a gas when the particles of the gas collide against each other at a constant temperature and volume? explain your answer.