If you were transported back in time to the Cambrian Period, the mobile marine organisms that would be most

conspicuous would be ____.
a. brachiopods
b. crinoids
c. sharks
d. trilobites
e. plankton


d

Environmental & Atmospheric Sciences

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The first cities appeared in

A) China. B) Egypt. C) the Indus Valley. D) Turkey and Iraq.

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How does the Milankovitch theory explain intermediate-term climatic events like the Pleistocene

glaciation? According to Milankovitch, variations in what three parameters of Earth's orbit were responsible for the onset of Pleistocene glaciation? What will be an ideal response?

Environmental & Atmospheric Sciences

What is a talus?

A) a pile of rock with no vegetation covering it B) an arm of debris and regolith C) a pile of rock at the bottom of a steep slope D) a scooped-out area caused by a fall or slip of debris

Environmental & Atmospheric Sciences

Shaking regolith will have the effect of

A) compaction, both wet and dry. B) liquefaction, both wet and dry. C) compaction when wet, and liquefaction when dry. D) compaction when dry, and liquefaction when wet.

Environmental & Atmospheric Sciences