The _________________ represented the final stage in the Proterozoic continental accretion of

Laurentia. Fill in the blank(s) with the appropriate word(s).


Grenville orogeny

Environmental & Atmospheric Sciences

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This diagram shows a place underlain by uniform materials. What is the approximate average gradient (slope) of the water table in this location? The vertical exaggeration on this diagram is 10x.

A. less than 20 m/km B. 100 m/km C. 200 m/km D. 20 m/km

Environmental & Atmospheric Sciences

Which particles of sediment measure from 1/16 to 2 millimeters in diameter?

A. gravel B. clay C. silt D. sand

Environmental & Atmospheric Sciences

The subsolar point is at the Tropic of Cancer on December 21

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

A comma cloud is

a. an organized band of clouds that looks like a comma on a satellite photograph. b. a large cumulonimbus cloud whose anvil is in the shape of a comma. c. a high wispy cirrus cloud that takes on the shape of a comma. d. the spiraling arms of a hurricane. e. a band of high cirrus clouds blown by the jet stream.

Environmental & Atmospheric Sciences