The _________________ represented the final stage in the Proterozoic continental accretion of
Laurentia. Fill in the blank(s) with the appropriate word(s).
Grenville orogeny
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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
Which particles of sediment measure from 1/16 to 2 millimeters in diameter?
A. gravel B. clay C. silt D. sand
The subsolar point is at the Tropic of Cancer on December 21
Indicate whether the statement is true or false
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.