Know and predict earthquakes. Man can not enter more than 10Km onto Earth's crust but can send an spaceship to the entire Universe !! Earthquake prediction is the main goal for Plate Tectonic Geologists.
Your mom made the earths layers
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the crust
No
the crust
The layers of the earth are larger than out atmoshpere.
Rock & metal
buildings,landforms
lithosphere.
The mantle
red