Question

radiocarbon dating measures carbon - 14 decay in organic materials for determination. paleomagnetic dating uses earths magnetic field changes recorded in rock. potassium - argon dating dates rocks/minerals by potassium - argon ratio for old. dna analysis compares ancient genetic material for human migration/characteristic study. 3. describe the migration of early humans. answer: 4. who studies artifacts—objects left behind by human or human ancestors? a. historians b. archaeologists c. palentologists d. anthropologist

Explanation:

Early humans originated in Africa and gradually migrated outwards. They spread to different continents over time, adapting to various environments. Archaeologists are the professionals who study artifacts left by humans or human - ancestors. They analyze these physical remains to understand past human cultures and behaviors.

Answer:

1. Early humans originated in Africa and migrated to other continents over time, adapting to different environments as they spread.
2. B. Archaeologists