Discuss the use of fossils in the determination of relative geologic ages. Discuss guide fossils
and their uses. What will be an ideal response?
The student should discuss the use of fossils to determine the relative age of strata. In particular,
the use of several guide fossils with overlapping ranges can constrain the age of strata to a
greater extent. Guide fossils are easily identified with a wide geographic distribution and a short
geologic range
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List the following compounds in order of least oxidized to most oxidized
A. c < d < a < b B. a < b < c < d C. b < a < d < c D. b < a < c < d
If the world is to prevent significant climate change, which of the following would be MOST effective?
A. Reducing the use of nitrogen fertilizers B. Continue to ban chlorofluorocarbons C. Reducing methane releases D. Reducing fossil fuel use
?Match the term with the correct description.
A. ?population projected to triple between by 2050 B. ?makes up about 25% of the U.S. population C. ?country with the world's highest percentage of people age 65 and older D. ?the world's fourth largest economy E. ?world's most populous country
The aurora usually occur more frequently above Maine than above Washington State
a. True b. False