Subatomic particles can usually pass undeflected through an atom because the volume of an atom is composed of:

answer

i think the answer is a) as air pressure in an area increases, the density of the gas particles in that area decreases.

hope it

we can conclude that the melting point of table salt is above room temperature (it's actually 801 deg c). the melting point of mercury must be below room temperature (- 39 deg c).