Why are the planets that orbit the sun arranged in a plane?
a. Because proto-planet gas and dust were flattened into a disk due to the conservation of angular momentum
b. Because gravity affects the planets only along one of the sun’s axes
c. Because angular momentum is not conserved
d. The planets do not orbit the sun in the same plane
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Why are the planets that orbit the sun arranged in a plane?
a. Because proto-planet gas and dust we...
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