Distinguish sheet flow from channel flow. What will be an ideal response?
With sheet flow, water moves in a more-or-less continuous film over the surface. With channel flow,
the runoff is confined to long, troughlike depressions.
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What was the name given to the most recent episode of large-scale deformation in the Cordillera, and
when did it begin? What will be an ideal response?
Polar deserts form above ________ degrees north or south latitude
A) 0 B) 15 C) 30 D) 45 E) 60
The LONGEST period of daylight of the year in the United States occurs on:
A) March 3. B) September 30. C) November 18. D) June 21. E) December 4.
In the canyonlands of Utah and Arizona, canyon walls often support "hanging gardens" in which plants cling to sandstone cliffs and these hanging gardens are typically along shale beds in the sandstone
These areas are deserts, so what might explain these features? A) The shales form better soils than the sand, so the plants grow there. B) The shales form aquitards in the sandstone acquifer, trapping groundwater along the shale horizons that helps aid plant growth. C) The shales hold the water better than the sandstone, so plants preferentially grow in them. D) The shales are more fractured than the sandstones so the plants have an easier time starting in the shale.