Rocks are composed of
A. glass.
B. minerals.
C. elements.
Answer: B
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Coarsely crystalline igneous textures indicate that
A. the rock broke apart as it flowed. B. there was a lot of gas in the magma. C. the rock cooled quickly. D. the rock cooled slowly. E. the ash and pumice were hot and became compacted.
According to the figure, which of the following levels of pollution reduction has the greatest amount of benefit derived?
A) 20% reduction B) 60% reduction C) 80% reduction D) 100% reduction
If all of the olivine crystallized in a typical magma and then settled to the floor of the magma chamber, would there still be enough elements present in the magma to form quartz?
What will be an ideal response?
U.S. geothermal energy is most available in ________
A) the Florida Keys B) the Northeast C) Texas D) the West E) the Southeast