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

Environmental & Atmospheric Sciences

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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).

Environmental & Atmospheric Sciences

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

Environmental & Atmospheric Sciences

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

Environmental & Atmospheric Sciences

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

Environmental & Atmospheric Sciences