Discuss the major Early Paleozoic transgressions and regressions in North America. How did these transgressions and

regressions shape the geologic character of North America today? Give examples of specific features caused by these
transgressions and regressions. What will be an ideal response?


Answers will vary. The student should first define the terms “transgression” and “regression”
(rise and fall of sea levels) and discuss possible causes for these events (tectonic or glacial
events), and then discuss the Sauk and Tippecanoe sequences.

Environmental & Atmospheric Sciences

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Global climate change is not likely to alter natural hazard frequency because most hazards are not related to climate

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

An important planning tool used in variety of applications for land-use and engineering geology involves

A. geophysical data. B. maps. C. weather data. D. None of the choices are correct.

Environmental & Atmospheric Sciences

Assume you live near Mount St. Helens and the volcano is going through an explosive eruption. Explain the effect pyroclastic materials would have on your home

What will be an ideal response?

Environmental & Atmospheric Sciences

Which two of the following rivers flow north from Siberia to the Arctic Ocean?

A) Zeravshan and Volga B) Dnieper and Ob' C) Amu Dar'ya and Syr Dar'ya D) Volga and Don E) Lena and Ob'

Environmental & Atmospheric Sciences