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What does the term Milankovitch cycles refer to? A. alternating glacial and interglacial periods B. advancing and retreating continental ice sheets C. freezing and melting of fallen snow
to shape glaciers D. periodic changes in Earth's orbit and axial tilt that affect climate
D. periodic changes in Earth's orbit and axial tilt that affect climate
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Asked 6/13/2011 3:50:37 PM
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The process of sediment being laid down is known as _____. A. melting B. erosion C. deposition D. crystallization
Weegy: The process of sediment being laid down is known as C. deposition User: The two factors that create metamorphic rocks are _____ and _____. A. heat; pressure B. heat; deposition C. heat; crystallization D. deposition; crystallization Weegy: A. heat; pressure User: Which of these types of rock can undergo metamorphism? Select all that apply. A. igneous B. sedimentary C. metamorphic Weegy: All rocks, so A B and C (More)
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Asked 6/13/2011 1:48:09 PM
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Some people think that we should "geo-engineer" Earth's climate in order to prevent global warming. Which proposal could cool Earth's climate? A. increasing carbon dioxide emissions B. adding dust particles into the upper atmosphere C. attempting to slow volcanic eruptions by plugging craters D. covering sections of Earth's surface with black plastic in order to block sunlight
Weegy: A. increasing carbon dioxide emissions User: How frequently do Milankovitch cycles occur? A. every 1,000 to 20,000 years B. every 20,000 to 40,000 years C. every 40,000 to 100,000 years D. every 100,000 years to 1,000,000 years Weegy: C. every 40,000 to 100,000 years User: Earth's current climate is _____ its average climate throughout geologic time, but _____ than the climate of the recent past. A. cooler than; warmer B. warmer than; cooler C. the same as; cooler D. the same as; warmer Weegy: B. warmer than; cooler User: Earth's climate over the last three million years is BEST characterized by A. persistent global warming. B. both ice ages and normal periods. C. alternating glacial and interglacial periods. D. warmer-than-average temperatures throughout Earth's geologic time. Weegy: A. increasing carbon dioxide emissions (More)
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Asked 6/13/2011 2:18:16 PM
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During the last glacial maximum, ice sheets could be found at _____. A. both poles B. the North Pole C. the South Pole
Weegy: B. The north pole. (More)
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Asked 6/13/2011 2:56:28 PM
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