Pennsylvanian rocks have a characteristic cyclical deposition sequence of ____ and ____ sediments
called ____.
a. shale, carbonate, varves
b. marine, nonmarine, varves
c. carbonate, shale, cyclothems
d. marine, nonmarine, cyclothems
e. none of the above
D
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The UN definition of extreme poverty means one is living on less than how much per day?
A) $20.00 B) $1.00 C) $1.90 D) $3.10 E) $0.35
Which of the following statements are true? Check all that apply.A) The terms species and population are interrelated.B) A species is the largest possible population of a particular kind of organism.C) A population includes all organisms in a specific place.D) The term population is often used to refer to portions of a species by specifying a space and time.
Fill in the blank(s) with the appropriate word(s).
Each population in an ecosystem has a ____ to variations in its physical and chemical environment.
A. low tolerance B. high tolerance C. range of tolerance D. high resilience E. low resilience
A useful tool illustrating the relationships among igneous, sedimentary, and metamorphic rocks is called the ________.
A. rock cycle B. Bowen's reaction series C. relationships between preexisting rock D. plate tectonic cycle E. weathering and erosion of surface features