________ is the rising of cold water from deeper layers to replace warmer surface water.
A) Upwelling
B) Contraction
C) Wave refraction
D) Sublimation
Answer: A) Upwelling
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A 1/1,000,000 species per year extinction rate, which is the estimated average rate of extinction in the history of life on the earth, is called ____ extinction.
A. background B. local C. ecological D. biological E. total
Relatively stable, immobile parts of continents that form the foundation on which Phanerozoic sediments were
deposited are ____. a. cratons b. mobile belts c. orogens d. clastic wedges e. back-arc basins
To calculate the rate of natural increase, geodemographers subtract the death rate from the birth rate and convert that figure to a percentage.
a. true b. false
Sedimentary rock formed from dissolved minerals that precipitate out of water solution and build up to form rock are
A) clastic. B) inorganic. C) organic. D) chemical.