It appears that, as the number of sunspots increases, the sun's total energy output ____
A) increases slightly
B) decreases slightly
C) begins to alternately increase and decrease above average values
D) does not change
A
Environmental & Atmospheric Sciences
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The frequency of electromagnetic waves and the frequency of the vibrating electrons that produce them are normally
A. inversely proportional. B. the same. C. quite different. D. nearly the same.
Environmental & Atmospheric Sciences
How did climatic changes influence the evolution of hominids from anthropoids? What will be an ideal response?
Environmental & Atmospheric Sciences
Satellites can measure the height of the sea surface from 835 miles above Earth
a. True b. False
Environmental & Atmospheric Sciences
Real-world extreme tidally driven currents in a tidal channel have speeds in excess of ________.
A. 0.5 m/s B. 3 m/s C. 1 m/s D. 5 m/s E. None of these
Environmental & Atmospheric Sciences