The statistical relationship between the magnitude and frequency of geologic events is:
a. inversely proportional
b. directly proportional
c. unpredictable
d. inversely proportional, but only at low magnitudes
a
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Given that the total number of atoms on our planet remains fairly constant, how is it ever possible to deplete a natural resource such as a metal?
A. The atoms don't leave our planet, which is why naturally occurring materials never really reach the point of depletion. B. The problem is with the expense of collecting metal atoms that are uniformly dispersed. C. The problem remains that not everyone recycles as they should. D. Recycling only forestalls the inevitable depletion of metal resources.
What fraction of Earth's fresh water is held in the Great Lakes?
A) 1/20 B) 1/10 C) 1/5 D) 1/2
The geologic rock cycle presents an orderly transition from igneous to sedimentary to metamorphic rocks. However, there are also some alternative transitions that bypass part of the rock cycle
Which of the following is the best example of one of those bypasses? A) Igneous rocks are weathered and eroded to become sediments. B) Metamorphic rocks are melted to become magma. C) Magma cools and crystallizes to form igneous rocks. D) Sedimentary rocks are weathered into sediments, which become lithified into sedimentary rocks.
The first colonizing organisms during primary succession tend to be:
a. herbs b. lichens and mosses c. trees d. small shrubs