From this cross section of the Grand Canyon, what occurred between the formation of the Precambrian metamorphic rocks and the deposition of the lowest Paleozoic rocks?

A. uplift and erosion
B. erosion
C. deposition and tilting of the Precambrian sedimentary and igneous rocks
D. uplift
E. All of these.


Answer: A

Environmental & Atmospheric Sciences

You might also like to view...

A stream erodes material from its banks and bed by:

a. suspension. b. hydraulic action. c. abrasion. d. suspension and hydraulic action. e. hydraulic action and abrasion.

Environmental & Atmospheric Sciences

A rock with both igneous and high-grade metamorphic characteristics is a(n) ____________________. Fill in the blank(s) with the appropriate word(s)

Environmental & Atmospheric Sciences

The plastic-derived decking materials used in constructing many homes and commercial buildings best illustrate which of the following methods to reduce MSW?

A) Source reduction B) Composting C) Recycling D) WTE disposal

Environmental & Atmospheric Sciences

The term that describes the amount of oxygen required by aquatic bacteria to decompose a given amount of organic waste is

A) BOD. B) CDR. C) CFC. D) ABD. E) OWB.

Environmental & Atmospheric Sciences