Which silicate mineral is the most abundant in the Earth's crust?
a. basalt
b. feldspar
c. obsidian
d. magnetite
e. calcite
B
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Suppose the eye of a hurricane passed directly over you, and you survived the experience. If winds were from the northeast as the eyewall first approached you, from what direction did the winds blow when the eyewall reached you the second time?
A) NW B) NE C) SE D) SW
What is the most mountainous region of China?
A) north B) east C) west D) central E) south
The World Bank ________
A) regulates U.S. environmental administrative agencies B) assists U.S. corporations to circumvent foreign nations' environmental laws C) is a major source of funds for global economic development D) is a U.S. NGO that funds any project that may affect global environment E) mandates that environmental law preempt all other federal laws
Oceanographers who want to know about ocean structure beneath the sea floor use which of the following techniques?
A) Magnetometer B) Multibeam Sonar C) Seismic Reflection D) Side-scan Sonar E) Sounding