The correct matches are:
<em>1. archaeology - the study of early human communities through the examination of the remains;</em>
Examining the past of the human kind, its development, reasons for it, artifacts, activities...
<em>2. anthropology - the study of people;</em>
It is focused only on the human kind, and every aspect of the human nature.
<em>3. linguistics - the study of human language;</em>
Traces the origins of languages, branches them out, groups them, and tries to understand their evolution and connections.
<em>4. cuneiform - symbols used to represent sounds;</em>
Primitive style of writing, or proto-writing, by which people managed to record things by writing them down, mostly used in the Middle East.
<em>5. hieroglyphs - symbols used to represent objects;</em>
Colorful drawn pictures that resemble an object in real life, used as a writing system in Ancient Egypt.
<em>6. petroglyphs - pictures carved out of stone;</em>
Carvings out of stone with the purpose of documenting events that happened.