The steepest, stable, slope angle possible in unconsolidated, granular materials like sand and gravel is called the angle of retention.
a. true
b. false
Answer: b. false
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What was the primary way sediment was transported to North America (east coast) continental margin
during the last ice age? a. Rivers carry the sediment right to the shelf edge. b. Strong currents carry the sediment to the contential shelf edge. c. Wind blows sediment from the continent to the shelf edge d. Glaciers
What does a radioactive-isotope aging test on a rock determine?
A) the age of the rock since metamorphism B) the date of formation of the rock-forming minerals C) the length of time the rock has existed in its location D) the age of the rock since sedimentation
Thunderstorms form when ____
a. cool, dry air descends into warm, moist air b. warm, moist air flows upward into cool, dry air c. cool, moist air flows below warm, dry air d. cool, moist air flows above warm, dry air e. warm, moist air flows below cool, moist air
A ________ is a deep, cylindrical hole that is dug or drilled into the ground to penetrate an aquifer within the saturated zone.
A. deep aquifer B. water hole C. cone of depression D. well E. pump