Having been cut into a 500 acre site at tell hamoukar

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having been cut into a 500-acre site at Tell Hamoukar, Syria, have yielded strong evidence that centrally administered complex societies in northern regions of the Middle East were arising simultaneously but D. cut into a 500-acre site at Tell Hamoukar, Syria, yields strong evidence of centrally administered complex societies in northern regions of the Middle East arising simultaneously but also E. cut into a 500-acre site at Tell Hamoukar, Syria, have yielded strong evidence that centrally administered complex societies in northern regions of the Middle East arose simultaneously with but Answer: ------------------------------------------------------------------------------------------------------------ Q21: Which of the following most logically completes the passage? Each species of moth has an optimal body temperature for effective flight, and when air temperatures fall much below that temperature, the moths typically have to remain inactive on vegetation for extended periods, leaving them highly vulnerable to predators. In general, larger moths can fly faster than smaller ones and hence have a better chance of evading flying predators, but they also have higher optimal body temperatures, which explains why ______. A. large moths are generally able to maneuver better in flight than smaller moths B. large moths are proportionally much more common in warm climates than in cool climates C. small moths are more likely than large moths to be effectively camouflaged while on vegetation D. large moths typically have wings that are larger in proportion to their body size than smaller moths do E. most predators of moths prey not only on several different species of moth but also on various species of other insects Answer: ------------------------------------------------------------------------------------------------------------ Q22 to Q25: Earth’s surface consists of rigid plates that are constantly shifting and jostling one another. Plate movements Line are the surface expressions of motions (5) in the mantle—the thick shell of rock that lies between Earth’s crust and its metallic core. Although the hot rock of 10
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the mantle is a solid, under the tre- mendous pressure of the crust and (10) overlying rock of the mantle, it flows like a viscous liquid. The mantle’s motions, analogous to those in a pot of boiling water, cool the mantle by carrying hot material to the surface and returning (15) cooler material to the depths. When the edge of one plate bends under another and its cooler material is con- sumed in the mantle, volcanic activity occurs as molten lava rises from the (20) downgoing plate and erupts through the overlying one. Most volcanoes occur at plate boundaries. However, certain “mis- placed” volcanoes far from plate (25) edges result from a second, indepen- dent mechanism that cools the deep interior of Earth. Because of its prox- imity to Earth’s core, the rock at the base of the mantle is much hotter than (30) rock in the upper mantle. The hotter the mantle rock is, the less it resists flow- ing. Reservoirs of this hot rock collect in the base of the mantle. When a reservoir is sufficiently large, a sphere (35) of this hot rock forces its way up through the upper mantle to Earth’s surface, creating a broad bulge in the topography. The “mantle plume” thus
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