Why do the planets orbit the sun and not the Earth?
A. Earth is not small enough to produce the kind of energy needed to control the other planets.
B. Earth is not close enough to the center to control the orbits of other planets.
C. Earth is not massive enough to have the kind of gravitational force needed to keep planets in orbit around it.
D. All of these choices are correct.
E. None of these choices are correct.
Answer: C
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A) population centers, bulk-gaining B) coastal areas, labor intensive C) ship building facilities, skilled labor D) sources of inexpensive energy, energy intensive E) auto parts manufacturers, vertical
What is happening at the molecular level when a polar molecule like water interacts with a typical sodium ion?
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Relative to ultraviolet waves, the wavelength of infrared waves is
A) shorter. B) longer. C) the same.
There are insufficient data to determine with a strong degree of certainty that solar variability affects climate
Indicate whether the statement is true or false