Evidence of the solar wind on Earth is the
A) meteor showers in the upper atmosphere.
B) solar sunspots, seen with care by the naked eye.
C) preponderance of hurricanes at certain latitudes.
D) higher ocean tides in winter.
E) Aurora Borealis.
E
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The most vulnerable area of a nuclear power plant to acts of terror and environmental contamination is/are the
A. control rods. B. uranium mine. C. pools and casks. D. core. E. containment shell.
How many time zones are there?
a. 4 zones
b. 24 zones
c. 10 zones
d. 40 zones
e. 180 zones
In general, compared with soils on gentle slopes, soils on steep slopes will tend to be
A) better developed. B) more clayey. C) more easily eroded. D) more acidic.
Geologists use the natural radioactive decay of elements as the foundation for relative time dating
a. True b. False