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Which planet could an astronaut visit without the need for a spacesuit (and survive) ?
Q2: The Huygens probe took numerous pictures as
Q4: Describe the three sources of internal heat
Q27: Which statement about Saturn's rings is not
Q37: Suppose an object is moving in a
Q50: What is a magnetosphere and how are
Q59: Higher temperatures make rocks weaker.
Q71: State the two laws of thermal radiation.
Q75: How many moons is Pluto known to
Q96: Which planet is moving most slowly around
Q128: Which of the following statements about circumpolar