When two air masses collide at a front, one air mass may be pushed upward by the other. This is because ____
A) one air mass is moving faster than the other
B) one air mass is denser than the other
C) pressure is falling in one air mass and rising in the other
D) one of the air masses encounters topographical features on the ground
B
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What could cause a canyon to be deeper upstream than downstream?
A) The area upstream could be uplifted more than areas downstream.
B) The area upstream is higher above base level and so results in deep erosion.
C) A steeper gradient allows more erosion upstream.
D) All of these are correct.
Compare and contrast the three types of convergent plate boundaries: oceanic-oceanic, continental-continental, and oceanic-continental. Detail the geologic processes occurring at each and identify by location the geologic features that form.
What will be an ideal response?
What writing system is used in languages found throughout East Asia?
A) ideographs B) Arabic alphabet C) Cyrillic alphabet D) hieroglyphics E) Roman alphabet
Monitoring wells around a sanitary landfill are used to determine
A. if artesian conditions occur. B. if leachate is escaping. C. if the water table is declining. D. if an aquifer is confined.