Snowmobiles are causing problems in some of our national parks. Particulate matter, emitted by engines of vehicles, is a cause of haze and smog.

In the passage above, what is the meaning of the words particulate matter?
A.
soot
B.
haze
C.
smog
D.
particular

L2.4.3 test (cst): the story question 13 of 20 2 points choose the sentence that uses parallel structure correctly. o a. not only is she cutting her hair, but also coloring it. o b. he either decided to run the race or volunteer. o c. i am not only baking cookies but also brownies. od. neither my mother nor my father can watch my game.