Alfred wegner is considered as the father of tectonic theory
I would either answer sanitation(pollution) or corruption
Answer:
5
Explanation:
Michigan, Huron, Ontario, Superior, and Erie
Answer:
It’s the first one, humans
At the center of the Earth is the core, which has two parts. The solid, inner core of iron has a radius of about 760 miles (about 1,220 km), according to NASA. It is surrounded by a liquid, outer core composed of a nickel-iron alloy. The outer core is about 1,355 miles (2,180 km) thick.
