Density is a characteristic of a given material. Water, for example, has a certain density (which is somewhat dependent upon temperature but let's say that the temperature is constant). It does not matter how much water you have, it will all have the same density. One teaspoon has much less mass, but the same density as an entire ocean.
Density= mass over volume
If density increases, so will mass. For volume it will decrease. You see, density will increase or decrease whenever mass does.
If the density increases the volume decreases.
The answer depends on what - if anything - happens to the mass and volume.
the density increases as does the volume
The density increases
The density of the atmosphere decreases with altitude.
The density of seawater increases if salinity increases.
Density always increases as altitude decreases. So the air density below sea level will be greater than the air density at sea level.
The density increases
The density increases
it increases
the density increases
the density increases
the density decreases
If volume increases while mass remains the same, the density will decrease.
increases
Its density increases.
The density increases..
Density = mass / volume. Therefore, if volume increases and mass doesn't change, density will obviously decrease.
increases
It increases