In 2010, geologists from the U.S. military discovered nearly $1 trillion worth of minerals in ________
A) Iraq B) Afghanistan C) Peru D) Nevada E) Vietnam
Answer: B
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The increase in atmospheric oxygen during the Proterozoic was caused by ____
a. a decrease in worldwide volcanism. b. a decrease in the size of oceans.
c. photosynthesis by cyanobacteria. d. the appearance of land plants. e. formation of banded iron formations
How could one test if calcite is the mineral that cements together loose grains of sandstone?
A) If it is extremely strong then it is calcite. B) If it does not react with dilute acid, then it is calcite. C) If it does react with dilute acid, then it is calcite. D) If you lick it and it falls apart, then it is calcite.
Earthquakes with a Richter magnitude less than 2.0 are generally not felt by humans
Indicate whether this statement is true or false.
What best describes how petroleum is different than coal?
A. is a less concentrated form of energy B. contains considerable amounts of hydrogen C. is a less volatile form of energy D. contains more carbon atoms E. forms only in sedimentary rocks