Totality during a solar eclipse is not totally dark because
A. the Moon is directly in front of the Sun.
B. of light from the solar corona.
C. the Moon is smaller than the Sun.
D. most of the Earth is basking in sunlight.
E. the line between umbra and penumbra is not sharp.
Answer: B
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A) Slovenian B) Bosnia C) Croatia D) Kosovo E) Macedonia
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A) a consistent amount of energy received at the top of the atmosphere. B) the same for a sphere or for a circle. C) only about a quarter of all energy emitted by the sun. D) the same value for all planets, even Neptune.
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A) capillary waves B) longitudinal waves C) refracted waves D) orbital waves E) transverse waves
If no water is involved, rocks can mechanically weather if they undergo ________ temperature change cycles
A) two B) a dozen C) hundreds of D) thousands of E) millions of