Which of the following is NOT something we can learn by determining isotopic ages?
A. the age when a rock is uplifted toward the surface
B. the age of material from which clasts in a sedimentary rock were derived
C. the cooling history by using different types of isotopic ages
D. the age of a volcanic eruption
E. We can determine all of these.
Answer: E
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Which of the following is not the name of a chemical family?
A. heavy metals B. noble gases C. transition metals D. alkaline-earth metals E. alkali metals
Where would you find the largest difference in shallow and deep ocean temperatures?
A. middle latitudes B. high latitudes C. low latitudes
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?
Horizontal variations in air pressure cause a force which makes the wind blow. These pressure variations are often caused by:
A) non-circular shape of Earth. B) greenhouse effect. C) uneven heating of the earth's surface. D) warm temperatures in the stratosphere. E) Earth's rotation.