Dinosaurs went extinct approximately 65 million years ago
Indicate whether the statement is true or false
Ans: True
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Estimate the minimum thickness of the ice at the terminal moraine in the area of Blue Spring Lake. Assume that the ice extended up at least to the highest point on the moraine. (Determine the thickness of the ice, not its elevation.)
The question is based on Map T-11, the “Whitewater, Wisconsin” quadrangle (scale 1:62,500; contour interval 20 feet; dotted lines represent 10-foot contours). The irregular high ground of “Kettle Moraine State Forest,” running diagonally from the lower left to the right center of the map, is a terminal moraine left by a Pleistocene ice sheet (42°51'34"N, 88°35'59"W). The region northwest of the terminal moraine was once covered by the ice. The region in the southeast corner of the map is the edge of the glacial outwash plain. What will be an ideal response?
Temperature increases in the stratosphere because
A) air density also increases. B) the stratosphere captures most of the heat radiated from Earth. C) the stratosphere borders the thermosphere. D) the stratosphere contains ozone molecules. E) the stratosphere contains nearly all of the atmosphere's carbon dioxide.
Which of the following is the best example of a positive feedback effect?
a. ?Melting ice exposes the dark surface of the ocean, which reflects less of the sun’s energy than ice. This heats the water and in turn, melts more ice. b. ?Melting ice exposes the dark surface of the ocean, which reflects more of the sun’s energy than ice. This heats the water and in turn, melts more ice. c. ?Melting ice allows ocean levels to rise and reduce the surface area of the remaining ice, slowing its melting rate. d. ?Aerosols block the sun’s radiation, slowing the melting of ice. e. ?Aerosols cause air pollution, which increases local drought conditions.
These soils are the most spatially widespread, extending from the equator to high latitudes
A) Entisols B) Vertisols C) Gelisols D) Alfisols