"Taking the bus is one way of reducing noxious emissions."

In this sentance, the word "noxious" means:
a)awkward
b)harmful
c)strange
d)unpleasant
I'm stuck between b and d. help please?

5 answers

One of those is more exact than the other.

http://dictionary.reference.com/browse/noxious
is the answer b then?
Right.
thanks!
You're welcome.