This figure has rock units and geologic features that are assigned letters that are not in any particular order. From the geologic relations, what is the oldest unit or feature of those listed below?





A) The canyon (feature N)

B) Lava flow (unit L)

C) Dike (unit D)

D) Fault (feature F)

E) Old river channels (feature R)


D) Fault (feature F)

Environmental & Atmospheric Sciences

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The restoration of Nonsuch Island in Bermuda has been very successful, particularly in preserving the

A. Forest lynx B. Bermuda cedar C. Pine martin D. Bermuda cahow E. Long-tailed tropic bird

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A) gravitation. B) nuclear fission. C) mass decrease. D) its relatively slow spin. E) reduced gaseous pressures.

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The Ice Age, which began about 2.5 million years ago, is also known as the ____

a. Pleistocene epoch b. Holocene epoch c. Bölling-Alleröd period d. Younger Dryas e. Little Ice Age

Environmental & Atmospheric Sciences