To calculate the age of a rock, you need to know the parent-daughter isotope ratio and ________
A) the half-life of a radioactive isotope
B) the composition of the parent rock
C) the area in which the rock was deposited
D) the sequence of depositional events
Answer: A
Environmental & Atmospheric Sciences
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A stream that cuts directly through ridges that lie in their paths are called ____________________. Fill in the blank(s) with the appropriate word(s)
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Which of the following is a variety of moraine?
A) lateral B) cirque C) kettle D) hanging
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What are the differences between solid wastes and hazardous wastes?
What will be an ideal response?
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If the salinity of ocean water at the entrance to an estuary is 30 percent and the average salinity of the estuary is 20 percent, what fraction of the volume of water in the estuary is fresh water?
A. 1/2 B. 1/3 C. 1/4 D. 1/8 E. 16
Environmental & Atmospheric Sciences