The major factor in glacial periods lasting tens of millions of years appear to be changes in the sun's heat output,rather than changes in shapes,sizes,and orientations of the continents and oceans.

Question

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The major factors in glacial periods lasting tens of millions of years are primarily attributed to changes in the shapes, sizes, and orientations of the continents and oceans, which affect ocean currents and atmospheric patterns, rather than changes in the sun's heat output. Continental configurations can significantly alter global climate patterns, leading to ice ages.

The Major Factor in Glacial Periods Lasting Tens of Millions