Lavas erupting from composite cones are generally ________-rich, making them very viscous
A) magnesium
B) iron
C) aluminum
D) silica
Answer: D
Environmental & Atmospheric Sciences
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The decay of radioactive elements is one mechanism by which the Earth generates internal heat. Indicate whether the statement is true or false
Environmental & Atmospheric Sciences
When a very cold air mass covers half of the United States, a very warm air mass often covers the other half. Explain how this happens.?
What will be the ideal response?
Environmental & Atmospheric Sciences
Most of the world's aluminum comes from which of the following?
a. quartz b. bauxite c. hematite d. plagioclase e. basalt
Environmental & Atmospheric Sciences
The distinction between a joint and a fault is
A) the separation distance. B) the distance that rock moves on each side of the line. C) joints do not involve breaking rock and faults do. D) joints are filled in with precipitated mineral crystals and faults are not.
Environmental & Atmospheric Sciences