It is difficult to find an esker on a present-day landscape because
A) they were formed by glaciers only in very rare conditions.
B) they erode naturally very quickly.
C) they are usually overlain by other sediments from modern streams.
D) humans mine them as a source of gravel.
D) humans mine them as a source of gravel.
You might also like to view...
Why are Mesozoic and Cenozoic paleogeographic reconstructions more accurate than reconstructions for earlier time
intervals? a. Mesozoic and Cenozoic rocks are better preserved on ocean floor b. Mesozoic and Cenozoic rocks have not been destroyed by subduction c. Mesozoic and Cenozoic rocks were deposited underwater. d. Mesozoic and Cenozoic rocks have not experienced erosion. e. Very few tectonic events have occurred since Mesozoic and Cenozoic time
Among the countries of the Near Abroad, the poorest in terms of per capita GNI is:
A) Belarus B) Ukraine C) Russia D) Georgia
The winds that begin the polar high pressure zones are called ________.
A. polar easterlies B. westerlies C. easterlies D. polar westerlies E. northerlies and southerlies (depending on the pole)
We are currently living in the Phanerozoic Eon and the Cenozoic Era.
a. true b. false