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?


The student should first define the terms “transgression” and “regression” and discuss possible
causes for these events. The student should then discuss the Sauk and Tippecanoe sequences.

Environmental & Atmospheric Sciences

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The Coast 2 Coast SDI corridor runs from South Africa through Botswana and:

A) Namibia B) Swaziland C) Nigeria D) Lesotho

Environmental & Atmospheric Sciences

The Europeans-mainly the Spanish, French, and British-left a strong imprint on their North American colonies.

a. true b. false

Environmental & Atmospheric Sciences

Species that provide early warnings of damage to a community or an ecosystem are called ____ species.

A. foundation B. indicator C. keystone D. endemic  E. endangered 

Environmental & Atmospheric Sciences

Which of the following is true of the solubility of proteins in water?

A) Both fibrous and globular proteins are generally insoluble in water. B) Both fibrous and globular proteins are generally soluble in water. C) Fibrous proteins are generally soluble in water. D) Globular proteins are generally soluble in water.

Environmental & Atmospheric Sciences