Pahoehoe is lava erupted by Hawaiian volcanoes that has a(n) ____________________ viscosity and
a(n) ____________________ appearance. Fill in the blank(s) with the appropriate word(s).
low, ropy
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What could cause a canyon to be deeper upstream than downstream?
A) The area upstream could be uplifted more than areas downstream.
B) The area upstream is higher above base level and so results in deep erosion.
C) A steeper gradient allows more erosion upstream.
D) All of these are correct.
What contributes to the high biological activity and surface nutrients in southern polar waters?
A) Deep-water upwelling B) Weak stratification C) There is a lack of continental margins D) All are contributing factors
Numerical weather prediction models begin with an __________ and produce a __________
a. prog; analysis b. prog; meteogram c. meteogram; prog d. analysis; prog
Global positioning systems, while useful in navigation, have little utility in physical geography
Indicate whether the statement is true or false