Since Pangaea, the continents have drifted to their current location and then stopped drifting.
a. true
b. false
Answer: b. false
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In each second of fall, the distance a freely falling object will fall is
A) about 5 m. B) about 10 m. C) the same, but not 5 m or 10 m. D) increasing. E) none of the above
Suppose some commercial interests want to develop a golf course on what is presently forested land next to a reservoir used for city water. Describe the impacts this development might have on water quality in the reservoir
What will be an ideal response?
Which of the following features is NOT present along the Colorado River?
A) Delta B) Entrenched meanders C) Tributaries that start in high mountains D) Evidence for large prehistoric floods E) All of these are present.
The pore space, or porosity, of soils composed mainly of clays is generally
A) less than that in soils composed mainly of sands because the grains in clays fit together very well compared to sands. B) less than that in soils composed mainly of sands because clay soils usually have more abundant organic matter than sandy soils. C) greater than that in soils composed mainly of sands because the grains in clays do not fit together very well compared to sands. D) greater than that in soils composed mainly of sands because clay soils usually have less organic matter than sandy soils.