Which of the following best explains the formation of a medial moraine on a glacier?
A) A gravel pile that marks periods of glacial readvancement
B) A ridge of debris carried down the center of glacial ice
C) Sands and gravels that fill a subglacial stream channel
D) A ridge of debris carried along the sides of an advancing glacier
Answer: B
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The earth's surface as modified by human action to produce a tangible, physical record of a given culture is known as:
A) cultural ecology B) cultural lag C) cultural landscape D) environmental determinism
If a deformed body recovers its original shape as stress is released, it is said to be:
a) brittle b) elastic c) plastic d) tensional e) compressional
A ________ is a solid, naturally occurring, cohesive substance composed of minerals or mineral-like materials
A) tetrahedron B) mineral C) rock D) mixture
An important evolutionary step for reptiles was ________
A) the growth of scales from armor plating B) the formation of a true spine C) lungs that could hold air D) the development of shell-covered eggs