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How much energy does the Sun produce; what happens to its energy output over time?
Q4: Which of the following properties would be
Q23: Explain how our Solar System was formed
Q44: By definition, a mineral is an organic
Q57: As we move from the surface of
Q58: Mars appears to reverse direction and drift
Q63: Which is not a true statement?<br>A) Sulfide
Q71: Explain how the middle of the mantle
Q74: The correlation between carbon dioxide emission and
Q81: Astronomers discovered the element helium in the
Q85: Titan is the largest moon of _