Define equilibrium and give an example from within the Earth system
What will be an ideal response?
Answer: This could be almost anything, but the answer should be couched in system's terms. For instance, in a stream drainage basin, water flows off the landscape and travels along the river to its mouth. If rainfall increases, then the flow at the mouth of the river should increase, and input and output should be approximately equal over time.
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Judge the following sentence according to the criteria given below
In barrier-island shorelines tidal currents are much stronger in tidal inlets between adjacent islands than on the nearby tidal flats because neap tides occur when the Moon's gravitational attraction is oriented perpendicular to that of the Sun. A) The assertion and the reason are both correct, and the reason is valid. B) The assertion and the reason are both correct, but the reason is invalid. C) The assertion is correct but the reason is incorrect. D) The assertion is incorrect but the reason is correct. E) Both the assertion and the reason are incorrect.
If clay minerals were buried at a depth where subsurface temperatures exceed 200°C, which mineral are they likely to become?
Atlantic ctenophores in the Sea of Azov and the kudzu vine overgrowing a forest in southern Alabama
A) have become invasive species that threaten native species in their new environments. B) have become naturalized and live in equilibrium with native species. C) demonstrate how species can rapidly spread to new environments on their own. D) have small populations that probably will not survive more than a year or two.
James Ussher was a religious scholar who first suggested an exact date for "creation" of the Earth.
Answer the following statement true (T) or false (F)