it helps the scientists to predict future changes.
scientist thought someone moved it
scientists back then didn't want to belive that the earths plates could move on there own
Oceanic plates are primarily made up of basaltic rock while continental plates are primarily made of granitic rock. Basalt is denser than granite which allows oceanic plates to subduct beneath continental plates.
All of the tectonic plates move, but they move at different speeds depending on which plates are involved. The Pacific plate moves slightly more than four centimeters annually.
Scientists use sonar images to watch how the tectonic plates move and spread to create faults or collide to create mountains and volcanoes. The tectonic plates are large pieces of the crust floating on the mantle that push and pull against each other. The more these plates move the more landforms are created, whether underneath or above water. Using the images they see how often the plates move to create these land features and use this to see how active they are. I'm sorry if any of this information ended up being wrong/too vague, I couldn't find literally anything on it for some reason and it was better than "find it yourself" :)
bruh
Knowing about the Earths inside helps to understand tectonic plates. The currents in the mantle move the tectonic plates-well they can change it and they help them move. However, it doesn't really affect much considering tectonic plates move on their own.
tectonic plates
Geographical activities such as volcanic eruptions and earthquakes form the basis of this division.
Geographical activities such as volcanic eruptions and earthquakes form the basis of this division.
Geographical activities such as volcanic eruptions and earthquakes form the basis of this division.
Geographical activities such as volcanic eruptions and earthquakes form the basis of this division.
The outer core is broken into platesinner and outer core
Techtonic plates
Earthquake foci can be used to mark the earths plate boundaries . The movement along the plate boundary causes the earthquake. Knowing where the foci is can help predict future earthquakes in that scientists can monitor the area for shifts in the plates.
mantle.
Because scientists back then didn't want to believe that the earths plates could move or did move, especially on their own.