A finely crystalline or glassy igneous texture indicates that

A. there was a lot of gas in the magma.
B. the rock cooled slowly.
C. the rock cooled quickly.
D. the rock broke apart as it flowed.
E. the ash and pumice were hot and became compacted.


Answer: C

Environmental & Atmospheric Sciences

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Fill in the blank(s) with correct word

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This process involves using plants to absorb and accumulate toxic material. Once contaminants are absorbed into plants, the plants themselves are usually toxic and must be landfilled. The cost of this process can be less than half the cost of landfilling or treating toxic soil.

A) Detoxification B) Phytoremediation C) Composting D) Bioremediation E) Fertilizing

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During the Permian Period, the Permian Basin in west Texas was distinguished by____

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Modern tsunami warning systems depend on which of the following?

a. electromagnetic field detectors b. acoustic Doppler current profilers c. seabed seismometers d. submerged magnetometers e. sonar

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