In the 19th century, the geologic time scale was based primarily on sequence of fossils in the rock record.

a. true
b. false


a. true

Environmental & Atmospheric Sciences

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Cities today offer more opportunities for employment than they did in the past

Indicate whether the statement is true or false.

Environmental & Atmospheric Sciences

Presently, the North American and Eurasian plates are moving ________

A) toward each other B) away from each other C) toward the North Pole D) toward the Equator E) nowhere

Environmental & Atmospheric Sciences

Draw a classic supply/demand curve. Label the x axis, y axis, and market equilibrium.

What will be an ideal response?

Environmental & Atmospheric Sciences

An arête is a narrow, serrated ridge between two glacial valleys or adjacent cirques. Indicate whether the statement is true or false

Environmental & Atmospheric Sciences