Define "stream power." What is the link between stream power and sediment deposition?
What will be an ideal response?
Stream power is the ability of a stream to do work, or to expend energy to erode and transport sediment. When stream power decreases, sediments are no longer eroded and transported, and instead those sediments carried by the stream are deposited.
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If two species are in competition for the same resources,
A) we can infer they are in a predator-prey relationship. B) a new species will most likely enter the ecosystem if the species decrease the overlap in their niche. C) one will always drive the other into extinction. D) they cannot be part of the same ecosystem.
A thunderstorm is associated with ________ clouds.
A. cumulonimbus B. altostratus C. cirrostratus D. stratocumulus
If sunlight were green instead of white, the most comfortable color to wear on a hot day would be
A. green. B. yellow. C. violet. D. magenta. E. blue.
The induction explanation for lightning
A) is criticized by some scientists for not allowing enough time for the transfer of charge from ice crystals to hailstones. B) assumes that the upper atmosphere has a positive charge. C) assumes the transfer of electrons from ice pellets to ice crystals. D) is criticized by some scientists for not taking into account that the electrical field is too strong.