How do magmas form at convergent plate boundaries?
What will be an ideal response?
The melts that form at a convergent plate boundary mostly originate in the asthenosphere above the subducting plate, because the melting temperature of the asthenosphere peridotite is reduced by injection of water released from metamorphism of the subducted crust.
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The Cordilleran mobile belt formed on what is now the east coast of North America
a. True b. False
The Landsat series of satellites is an example of passive remote sensing
Indicate whether the statement is true or false
What energy transformation takes place when sunlight strikes an ordinary solid object?
A. electrical to thermal (heat) B. thermal (heat) to nuclear C. electromagnetic to electrical D. nuclear to electrical E. electromagnetic to thermal (heat)
The difference between a rock and a mineral is that
A. rocks are harder than minerals. B. rocks are composed of minerals. C. rocks can be of a wider variety of origins than minerals. D. rocks are inorganic but minerals are organic. E. rocks are cycled over geologic time but minerals are not.