Option B (Sudan)
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<span>St. Petersburg has been described as the most "Western" Russian city.
Answer: True
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Answer:
The stars mass (once it becomes a star) is inversely proportional to its lifetime as a main sequence star. A red dwarf can survive for many billions of years; a star that has twice the mass of the Sun, such as Sirius A, will have 25% of the Suns lifetime.
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Explanation:
The major player of the earth that's liquid is the outter core
