During times of high productivity which plankton are notable for making the surface water appear milky or chalky?
a. coccolithophores
b. dinoflagellates
c. zooplankton
d. cyanobacteria
e. diatoms
a
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What was the mistaken calculation made by Ptolemy that contributed to the "discovery" of the New World by Christopher Columbus?
a. Current movements b. Size of the Atlantic Ocean c. Shape of Earth d. Longitude lines e. Circumference of Earth
What degree of foliation is exhibited by the metamorphic rock in the image above?
A) Schistosity B) Nonfoliation C) Gneissic banding D) Slaty cleavage
The present direction and greatest opportunity for a person in geography probably lies in
a. medical and zoning. b. regional and medical. c. planning and government. d. geospatial technologies. e. Ethnography.
The hydrologic cycle refers to the ________
A) totality of the forms of precipitation B) unending circulation of Earth's water supply C) flow of rivers D) groundwater flow to the surface E) latent heat of vaporization