How could you describe the continental drift theory to someone in simple terms?.

In 1915 the german geologist and meteorologist alfred wegener first proposed the theory of continental drift, which states that parts of the earth's crust slowly drift atop a liquid core. the fossil record supports and gives credibility to the theories of continental drift and plate tectonics.

What is a compass? how does it work

The inner planets mercury, venus, earth, and mars were formed by