Earth

Why is the inner core solid
Because it is under extreme pressure
Becuse its cold
Because it is not under and pressure
Were do convection currents occur
The mantle
The crust
The outer core
Why are convection currents important
They make tectonic plates move
They make the tectonic plates stay in place
What does the combonation of crust and upper mantle make
Lithosphere
Troposphere
Geosphere
As you go down into the earth the pressure and the heat
Increse
Decrese
Who made the theroy of plate tectonics
J tuzo wilson
Wegner
Name the famous super conint
Pangea
America
Who discoverd sea floor spreading
Herry hess
J tuzo wilson
 
 
 
 
 
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