Niagara Falls is a large waterfall on a river, so it can be considered as an example of _______.
a - a rill
b - lateral erosion
c - a water gap
d - a knickpoint
e -stream capture
d - a knickpoint
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All of the following are found in chromosomes except
A. proteins. B. RNA. C. DNA. D. histones.
What device is commonly used to strengthen cracked or jointed rock masses in tunnels and steep road
cuts? a. pilings b. plaster c. rock bolts d. superglue e. corrugated metal sheets
Non-condensing GHGs are of greatest concern because they
A) take many decades to be removed from the atmosphere. B) deplete stratospheric ozone. C) react very quickly with other atmospheric gases. D) react with one another to produce even more potent GHGs.
Private conservation efforts to protect against the private development of land have relied upon the formation of
A) new national parks. B) federal wilderness areas. C) land trusts. D) city parks.