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(Solved): Which of the following was a major factor that drove the global climate shift from the early Cenozoi ...

Which of the following was a major factor that drove the global climate shift from the early Cenozoic 'Hothouse' to the mid-late Cenozoic 'Icehouse?' Select the answers that best fits.

	a.	ice sheet growth on Antarctica
	b.	decreased rates of mountain-building
	c.	None of the other answers fit.
	d.	frozen methane-hydrate melting and release
	e.	increasing volcanic output

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a. Ice sheet growth on Antarctica:

This is a correct answer. The mid-late Cenozoic creation and extension of huge Antarctic ice sheets caused the worldwide climatic shift from "Hothouse" to "Icehouse" conditions. As the ice sheets grew, they reflected more sunlight back into space, leading to cooling of the planet.

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(Solved): Which of the following was a major factor that drove the global climate shift from the early Cenozoi ...

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