Hello, I am an archaeologist, I recover and analyze material culture. 
Good, a person who studies human history and prehistory through the excavation of sites
Yep, I studied it as a social science and a branch of the humanities back in college. 
Ok good. from the development of the first stone tools at Lomekwi in East Africa 3.3 million years ago up until recent decades. 
It is really different from the field of paleontology, which is the study of fossil remains, but people still get confused between the two!