The sound of thunder travels how many miles every 10 seconds?
A) 1/2-mile
B) 1 mile
C) 2 miles
D) 10 miles
Answer: C
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The original purpose of the Mercator projection was
A) to produce an accurate equal area map. B) for the guidance of intercontinental missiles. C) for ocean navigation. D) to make the first map of the world. E) to befuddle introductory physical geography students.
The velocities of P- and S-waves are determined by the two properties of the material they are passing through: ____________________ and ____________________
Fill in the blank(s) with correct word
The Oceania/Pacific region is comprised of many countries and thousands of islands. What are four characteristics of a typical island nation?
Which of the following human-generated gases makes the greatest relative contribution to increasing the greenhouse effect?
A) Carbon dioxide (CO2) B) Chlorofluorocarbons (CFCs) C) Methane (CH4) D) Nitrous oxide (N2O) E) Water vapor