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Beneath the tectonic plates is a thick layer of molten rock called magma. There is a lot of heat generated by radioactive decay deep in the Earth's core and this rises through the outermost magma layer causing it to flow. Since the tectonic plates are effectively floating on this magma layer they are affected by the flow and hence move.
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How does tension change the shape of earths crust?
by pulling it making it thinner in the middle
Earth's outermost layer is the?
Earths outermost layer is the crust.Actually, the crust is divided into two parts,Sial and Sima.In that way, actually Sial is the outermost layer of the crust,as it lies above the Sima.
Describe the movement of the crust at a hotspot?
The crust moves in 1 direction at a hotspot due to the convection currents of the mantle
What is direct evidence in science?
Physical samples of rock extracted (taken) from deep within Earths crust.
Which rock group makes up least of earths crust?
Just to say: This question refers to rock groups. Not what type of rock.Igneous rocks make up most of the earth's crust.
What are plate movement?
the movement of earths plates or crust
What theory explains changes in the earths crust?
Contenintal Drift theory
What is a geololgist?
a person who studies the movement of the earths crust
What causes stress earths crust?
The movement in earths plates create powerful forces that pull or squeeze the rock in the crust.
Which movement of the Earths crust implies that the continental crust is less dense than the oceanic crust?
Plate tectonic movement and subduction zones.
An earthquake is a shaking caused by the sudden movement of the earths crust?
True((;
A crack in the earths crust caused by tectonic plate movement is called a?
Fault.
What is the name of the long deep valleys that are formed by the movement of the earths crust?
rifts
What is the name of the long deep valley that are formed by the movement of earths crust?
rifts
What is a sudden shaking of the earths crust caused by the movement of tectonic plates?
EARTHQUAKE
What long deep valleys are formed by the movement of the earths crust?
rift valleys
What name did alferd Wegener give to his theory of the horizontal movement of the earths crust?
Alfred Wegener named his theory of the horizontal movement of the Earth's crust "continental drift."
