________ are subdivisions of eras.

A. Ages
B. Eons
C. Intervals
D. Formations
E. Periods


Answer: E

Environmental & Atmospheric Sciences

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The idea of nationalism matured in Europe in

A) the Middle Ages. B) the Reformation. C) the Renaissance. D) the nineteenth century.

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The Westphalian system led to the development of

A. factories B. steam engines C. nation-states D. Gothic architecture

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The average number of years between past stream flow events that equaled or exceeded various discharges is called a(n) _______________ (two words)

Fill in the blank(s) with correct word

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Waves in the westerlies typically provide: a. wind speed shear

b. warm and cold advection. c. convergence and divergence. d. All of these choices.

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