4. Explain What happens
to water when an object
hits it?

It either floats (if the density is less than 4 c) or sinks, also it splashes

Explanation:

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.

a is the best answer your welcome