In this sentence -- In this story, a nameless character goes outdoors on a terrible cold day in the Yukon.

How many adverbs are there and what do they modify?

Is it just "outdoors" and it modifies "goes"

Yes.

To determine the number of adverbs in a sentence and what they modify, you can follow these steps:

1. Identify words that describe verbs, adjectives, or other adverbs. Adverbs often describe how, when, where, or to what extent an action is performed.

In the given sentence, the word "outdoors" can be considered an adverb because it describes where the character goes. It modifies the verb "goes" by indicating the location of the action.

So, in this sentence, there is one adverb, "outdoors," which modifies the verb "goes".