Particulate matter is A)a mixture of solid particles of liquid droplets found in the air
B)solid ground found in the tundra
C)all of the above
D)small pieces of ice and snow

A)a mixture of solid particles of liquid droplets found in the air

Explanation:

Particulate matter is a mixture of solid particles or liquid droplets found in the air. They are usually quite harmful and cause pollution to the environment.

  Solid ground found in the tundra is called permafrost.

  Small pieces of ice and snow are known as sleets.

So, a mixture of solid particles or liquid droplets found in the air is known as particulate matter.

a is the answer i believe.

i need more info to answer