What term describes the straight scratches on rock surfaces created by glacial abrasion?
A)rock flour
B)glacial striations
C)glacial till
D)varves
E)moraines
B
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The ___________ are a group of amphibians named for the wrinkling and folding of the chewing
surface of their teeth. Fill in the blank(s) with the appropriate word(s).
The total number of plant and animal species that a field biologist identifies along a mountain trail is an example of ________
A) species composition B) structural diversity C) species evenness D) species richness E) genetic diversity
Which of the following best describes Shiprock, a famous volcanic feature in New Mexico?
A) an extinct, massive, rhyolitic shield volcano B) the eroded remains of a volcanic pipe and radiating dikes C) an extinct, highly symmetrical, composite volcanic cone D) a very recently active, basaltic cinder cone
The surface mixed zone is characterized by ________
A) high density water near the surface that rapidly decreases in density with depth B) a mixture of temperatures and densities to a depth of about 300 to 450 meters depth. C) low density water near the surface that rapidly increases in density with depth D) a rapid change from warm temperatures on top to cold temperatures at a depth of about 300 meters E) nearly constant temperatures to a depth of about 300 meters