The vertical angle between a line of force and the earth's surface is:
a. the inclination
b. the declination
c. the paleomagnetism
d. proportional to the magnetic intensity
a
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Rock may melt by ________.
A. raising its temperature B. lowering the pressure on it C. increasing its water content D. All of these choices are correct.
The primary purpose of a radiosonde is:
A) to report data about surface conditions at an automated weather station. B) to compile data from thousands of automated weather stations into one file. C) to calculate numerical predictions of weather. D) to acquire data about conditions in the upper atmosphere.
What region generates the most refugees, currently numbering about 6 million?
A) Africa B) Europe C) former Soviet Union (Russia + surrounding countries) D) Latin America E) Mediterranean
What are epidemiological studies, and what is their value? Are there any disadvantages to epidemiological studies?
What will be an ideal response?