Answer:
When Earth was still molten, gravity pulled dense elements down to Earth's center.
Explanation:
Have a Good day!! :)
They give us informations about our ancestors and how did they live and what did they do and than compare it to present way's of life.
Answer:
Some, but not all, earthquakes are related to volcanoes. ... However, most earthquakes are caused by the interaction of the plates not the movement of magma . Most earthquakes directly beneath a volcano are caused by the movement of magma. The magma exerts pressure on the rocks until it cracks the rock.
A. collapsing dust clouds
Due to economic activities
