Which of the following is not one of the standard soil horizons?
A) A horizon
B) O horizon
C) C horizon
D) B horizon
E) D horizon
Answer: E
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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.
There is a mountain at 10,000 feet and one next to it at 12,000 feet. Which has more potential energy?
A) The mountain at 12,000 feet. B) The mountain at 10,000 feet. C) They have the same potential energy, because weight is more important than height. D) You can't tell; the weight wasn't given.
How does the introduction of a geographic barrier encourage the evolution of species? What will be an ideal response?
What is the primary process that is responsible for valley lengthening?
A. streamflow erosion B. headward erosion C. lateral erosion D. interfluve erosion knickpoint erosion