The Mesozoic Era orogenies of the Cordillera:a
progressively affected areas from west to east.
b. progressively affected areas from east to west.
c. involved only deformation and no magmatism.
d. involved only magmatism and no deformation.
e. A and C
A
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What keeps Earth's asthenosphere pliable?
A) Chemical composition of the asthenosphere B) The density of the asthenosphere C) Earth's internal heat D) Insulation from the lithosphere
The viscosities of magmas increase with increasing percentages of silica
Indicate whether the statement is true or false
Why is the molten metallic core of Earth necessary for life to exist?
What will be an ideal response?