Which isotope of hydrogen is radioactive?
A) 1H
B) 2H
C) 3H
D) none of these
C
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A major part of the greenhouse effect is that it involves the absorption of the earth's outgoing radiation by atmospheric gases. Along with carbon dioxide, what atmospheric component is largely responsible for this process?
A) water vapor B) nitrogen C) oxygen D) nitrous oxide
A(n) ________ may eventually be formed as layers of sediment are buried by subsequent layers of sediment.
A. sedimentary rock B. foliated rock C. igneous rock D. metamorphic rock E. sedentary rock
Which factor best supports the observation that water weathers some rocks faster than others?
A. rock properties B. rock type C. climate
As its name implies, the water table is always very level (flat)
Indicate whether the statement is true or false