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Test: SSAT Elementary Level Reading
Adapted from "America the Old World" by L. Agassiz in Wonders of Earth, Sea, and Sky (1902, ed. Edward Singleton Holden)
There is, perhaps, no part of the world where the early geological periods can be studied with so much ease and precision as in the United States. Along their northern borders, between Canada and the United States, there runs the low line of hills known as the Laurentian Hills. Insignificant in height, nowhere rising more than fifteen hundred or two thousand feet above the level of the sea, these are nevertheless some of the first mountains that broke the uniform level of the earth's surface and lifted themselves above the waters. Their low stature, as compared with that of other more lofty mountain ranges, is in accordance with an invariable rule, by which the relative age of mountains may be estimated. The oldest mountains are the lowest, while the younger and more recent ones tower above their elders, and are usually more torn and dislocated also. So it is known the Alps, Rockies, and Himalayas are considerably younger than the Appalachian mountains.
| 1. | How do we know that the Appalachians are older than the Alps? |
Because the Alps are much taller than the Appalachians.
Because geologists have studied rock samples from both.
Because the Appalachians contain fossils from a much earlier period than the Alps.
Because the Appalachians are much taller than the Alps.
Because the Alps are closer to the sea.
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