"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?

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.

To determine the meaning of the word "noxious" in the given sentence, let's break it down:

"The bus is one way of reducing noxious emissions."

One clue we can consider is the context of the sentence. It mentions emissions, which typically refers to the release of gases or substances into the atmosphere.

Now, let's look at the answer choices:

a) awkward - This choice does not directly relate to emissions or reducing them.

b) harmful - This choice seems plausible since harmful emissions can negatively impact the environment and public health.

c) strange - This choice does not accurately describe emissions or their impact.

d) unpleasant - This choice also seems plausible since emissions that are unpleasant can have negative effects on the environment and people's well-being.

To identify the correct meaning, it is necessary to consider that the main purpose is to reduce these emissions. When something is described as "noxious," it indicates that it is harmful or injurious, often in reference to a strong odor or toxic quality. Therefore, in this sentence, the word "noxious" means "b) harmful."

To arrive at this answer, it is crucial to analyze the context, examine the denotative meanings of the options, and make an inference based on their relation to the given sentence.