In which sentence 'near' is used as an adverb?

Adverb: at, within, or to a short distance or time
- The plant was near dead when I got it.
- as the campers grew cold, so they gravitated nearer to the campfire
Preposition: close to
- I left the box near the door.
- The cat won't go near fire.
- There are several beaches near here.
Adjective: not far distant in time, place, or degree
- The nearest grocery store is three blocks away.
- The near side headlight is out.

[Source: merriam-webste dictionary]