<span>Well, I'm pretty sure there are four. The northern and southern hemispheres, and then the eastern and western hemispheres.</span>
Answer: Potassium-argon dating
Explanation:
B. An oceanic plate sinks beneath another oceanic plate at a convergent boundary
Answer:
taking data from a population rather than a specific group of people to gather information from
(random and most representative on a large scale of people)
