What is upwelling and why is it important for biological productivity?
As winds pull the water in horizontal movement, this surface movement will induce vertical movement. As persistent winds blow off across the ocean, surface winds divert surface waters and are hence replaced by colder waters moving up toward the surface. This phenomenon is called wind-induced vertical circulation and results in upwelling. The colder waters brought to the photic zone by upwelling are rich in nutrients and these nutrients are necessary for biological production or photosynthesis.
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The most significant patterns of migration in Southwest Asia and North Africa is
A) urban to rural. B) rural to rural. C) rural to urban. D) international immigration from other Muslim countries in South and Southeast Asia. E) rural to urban migration and international immigration from other Muslim countries in South and Southeast Asia.
Why are high-protein cereals a successful approach to expansion of food production?
A) They represent an extremely cheap way to produce more food. B) They require little to no water as compared to standard crops. C) They can be grown anywhere. D) Individual food habits do not necessarily have to be altered. E) They often replace cash crops.
A sandstone with more than 25% sand-sized feldspar is an arkose.
Answer the following statement true (T) or false (F)
What system of measurement is used to categorize the strength of a hurricane?
A) Richter Scale B) Mercalli Scale C) Fujita Scale D) Saffir-Simpson Scale