Regents Earth Science Test Preparation Practice

    Generalized Landscape Regions Of New York State

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    Base your answers to questions 12 on the map in image provided and on your knowledge of Earth science. The map shows the total amount of snowfall, measured in inches, from a lake-effect snowstorm that affected a portion of New York State from February 2 through February 4, 2017. The 10-inch and 50-inch snowfall isolines have been drawn. Oswego, Watertown, and Old Forge are labeled on the map. Points A and B represent locations on Earth’s surface.

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    Base your answers to questions 13 on the field map in image provided and on your knowledge of Earth science. The map shows the depth of Cuba Lake, located in New York State at latitude 42°14’ N, longitude 78°18’ W. Isoline values indicate water depth, in feet. Points A and B represent locations on the shoreline of Cuba Lake. Points W, X, Y, and Z represent locations on the bottom of the lake. The 30-foot isoline has been partially drawn.

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    Base your answers to questions 14 on the passage and geologic cross section below and on your knowledge of Earth science. The geologic cross section represents rock layers of a portion of the Niagara Escarpment, and landscape features that are found in the Niagara region. The rock layers have not been overturned.

    The Niagara Escarpment

    A prominent feature found along the shore of Lake Ontario in western New York State is the Niagara Escarpment. This escarpment is the remains of an ancient seabed that was formed when the area was covered by a warm, shallow sea from approximately450 to 430 million years ago. Erosion of the Taconic Mountains to the east provided

    the sediments deposited in this basin area. From these sediments, rock layers such as shale, sandstone, and limestone formed. Later, magnesium replaced some of the calcium in the top layer of limestone, turning it into a dolostone layer. When the high ocean levels of the Ordovician Period dropped, the draining of this inland sea caused unequal erosion of the exposed layers. The South Moraine was deposited on the top of the Niagara Escarpment in this region.

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    Base your answers to questions 15 on the map in image provided and on your knowledge of Earth science. The map shows a portion of the continent of North America and some of the major rivers. The Rio Grande and the Mississippi River are labeled. Points A and B represent locations along the Mississippi River. Point C represents a location along a river in New York State (NY) that is part of the Mississippi River watershed.

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