The distribution of the land plant _____ is cited as critical evidence that the continents have moved through time
A)Glossopteris
B)Calamites
C)Equisetum
D)Cooksonia
E)Lepidodendron
A
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What are the landforms shown as a series of small hills near the upper left corner of the map? (Map T-27b will be especially helpful here.) How did they form?
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), and Map T-27b, a shaded-relief map showing a portion of this area in greater detail. 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 142°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?
The earliest seismographs were designed by the Chinese nearly 2000 years ago to measure ________
A) the magnitude of an earthquake B) the depth of an earthquake focus C) the intensity of an earthquake D) the direction to the earthquake focus
The zone beyond a glacier's limit and not directly touched by ice is the ________ zone
A) ablation B) accumulation C) periglacial D) moraine E) névé
If a septic system is to be used for sewage disposal,
A. the surrounding soil must be impermeable to contain the wastes. B. in normal operation, all potential pollutants will be decomposed. C. the soil should be unsaturated, containing sufficient air (oxygen) to permit aerobic breakdown of wastes. D. high population density is required for efficient operation.