All if the following are examples of suspensions except: muddy water

Italian salad dressing

salt water
dust particles in the air​

altitude, density, pressure

air gets less dense the higher the altitude and also the air pressure is less as altitude rises.

elements

explanation:

yes the other ones are right just show me a pic of ur face cuz u look hot

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.