Could someone tell me the types of words these are?

Here ( adverb )

Because ( conjunction )

eg. Come here. ( here as an adverb to mean how you come )

eg. I came here because someone recommended this site to me. ( because as a conjunction joining two separate sentences into one )

whl626 is absolutely correct. But just to expand on what whl626 said, please note that although "here" is USUALLY an adverb, there are exceptions. For example, in the sentence "It came from here", the word "here" is syntactically a noun. (Yikes!). The explanation is that the word "here" can stand for any of the following:

1. this place
2. at this place
3. to this place

I see, thank you.