How does an Andean-type mountain-building event compare to a Cordilleran-type? Consider tectonic environments as well as processes of formation
What will be an ideal response?
Answer: Andean-type events occur when oceanic lithosphere subducts beneath continental lithosphere. Volcanic arcs develop through partial melting of the subducting plate, which can also result in the emplacement of batholiths. Forearc and back-arc basins develop on either side of the volcanic arc. Back-arc basins will result from extension of the crust as the deep-ocean trench rolls back.
Cordilleran-type events occur when buoyant crustal fragments collide with a continental margin during subduction. This buoyant material—a microcontinent, for example—will accrete to the overriding plate as a accreted terrane. Fold-and-thrust belts are common.
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Ompare and contrast the characteristics the coastal environments of the U.S. Atlantic and Pacific coasts. What will be an ideal response?
Roundup Ready corn is resistant to the herbicide Roundup (glyphosate). One of the greatest concerns about this transgenic Roundup Ready corn is the
A) lower yields produced by Roundup Ready corn. B) transfer of herbicide resistance to related weeds that commonly infect cornfields. C) transfer of Roundup resistance to other crops, such as soybeans. D) eventual loss of this trait from Roundup Ready corn due to hybridization.
Distinguish between internal and external processes
What will be an ideal response?
The jet stream is best able to accomplish a transfer of heat from south to north when it has meridional flow
Indicate whether the statement is true or false