The most abundant rock type deposited during the Kaskaskian sequence was
a. the Oriskany Sandstone. d. black shale.
b. carbonates. e. arkoses.
c. evaporites.
B
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Old faithful is a geyser found in yellowstone national park.
Indicate whether the statement is true or false.
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. dike (unit D) B. old river channels (feature R) C. fault (feature F) D. lava flow (unit L) E. the canyon (feature N)
Seismology has provided critical data for modeling Earth's interior
What will be an ideal response?
What term refers to a measure of the relative abundance, or the comparative numbers of individuals, of each species present?
A. species richness B. species abundance C. species diversity D. species evenness E. species counts