1. In the middle of the continents
The oldest rocks on our planet can be found in the middle of the continental masses. Such places are the interior of Australia, from where the oldest rock have actually been found, Siberia, Central Africa, the interior of Canada, the interior of Brazil... The reason why this is the case is because of the subduction that occurs between the plates. The oceanic plates are the ones that subduct, thus their crust is getting destroyed, so their rocks are younger. The continental plates, on the other hand, are not getting subducted, but instead they either collide with other continental plates, or go above the oceanic plates that subduct below them, thus their crust is usually not destroyed, except on the surface part where the weathering and erosion are taking part.
2. at conservative boundaries
The conservative plate boundaries, more commonly referred to as transform plate boundaries, are the ones where the tectonic plates are sliding past each other. Instead of the plates moving toward each other, or away from each other, at these boundaries the plates are moving in sliding past each other while moving in opposite directions. The pressure between the plates on these boundaries results in cracks in the crust, known as faults, and they are parallel to the plate boundary. Also, these boundaries are very active geologically, and they often cause earthquakes to occur in the surrounding area.
Answer:
Along the fall line, eastern rivers break into rapids and waterfalls preventing many ships from the Atlantic Ocean from traveling further inland. Many cities were established here.
Explanation:
Answer:
The interior of Mars is probably solid.
Explanation:
The Earth's magnetic dynamo is generated by a current in the interior of the planet that is a result of the eddies that form thanks to the outer core being molten.
Since Mars is a smaller planet and is located twice as far from the Sun as Earth, it cooled faster and likely no longer has a molten or semi-molten interior. The cooling of the interior of the planet would have shut off the magnetic process and could explain why the modern Martian atmosphere is so tenuous.
