The total global population is about ?.? billion
What percentage of the world’s population does
not have access to a reliable source of fresh, clean
water? What will be an ideal response?
(1 billion ÷ 6.5 billion) × 100 = 15.4%
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Which of the following can affect the result of watershed analysis?
A. DEM resolution B. Flow accumulation threshold C. Flow direction method D. all of these are correct E. both DEM resolution and Flow accumulation threshold
Streams with broad, shallow channels and narrow, deep channels have a higher flow velocity than do
those with semi-circular channels Indicate whether the statement is true or false.
In which of the following agricultural situations are fertilizers least needed?
A) In a pumpkin patch that is harvested only in the fall, with the vines remain behind B) Where 1,000 acres of corn are raised and harvested for export C) A natural prairie pasture where cattle feed and defecate D) A field where a farmer applies cow manure after harvesting hay
Planets appear to move ________ each night, but occasionally they appear to stop and reverse direction
A) northward B) southward C) westward D) eastward E) It varies significantly.