Caliche is

A) fragmented quartz crystals that tumble down a cliff.
B) limestone crystals that form by precipitation.
C) calcite cement in desert rocks.
D) silica cement in ancient river-bed rocks.


Answer: C

Environmental & Atmospheric Sciences

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Indicate whether the statement is true or false

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A) colder autumns and colder springs B) warmer autumns and warmer springs C) warmer summers and warmer winters D) cooler winters and cooler summers E) warmer winters and cooler summers

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Mexico's region of oil and gas production is in the

A. northwest B. central plateau C. south D. east coast

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How was Captain James Cook able to study science, navigation, and international relations? Include

information on his various expeditions. What will be an ideal response?

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