Is it possible to change the velocity of a stream but have it maintain the same discharge? Explain. What will be an ideal response?
Yes. The discharge (Q) is a product of the velocity (V) and the cross-sectional area (A); that is, Q = V x
A. To maintain the same discharge while changing the velocity, it is necessary to change the crosssectional
area at the same time, and in the opposite manner. For example, if the velocity is increased,
the cross-sectional area would need to be decreased by an appropriate amount
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Which Köppen climate type (or types) is most closely associated with regions of the tropical scrub and the tropical savanna biomes?
Using the global map of biome distribution (Map T-30 in the back of the Lab Manual), the map of climate distribution (Map T-29), the maps of global temperature (Maps T-28a and T-28b), the map of global precipitation (on the inside front cover of the Lab Manual), as well as information about Köppen climate types from Exercise 23, answer the question. What will be an ideal response?
The Andes Mountains mark the line of collision between the South American Plate and the
A. North American Plate B. Pacific Ocean Plate C. Caribbean Plate D. Nazca Plate
Lake Springfield in the city of Springfield, Illinois, is a busy place where people swim and fish. The lake also supplies drinking water for Springfield residents and cooling water to a nearby coal-fired power plant
Beautiful homes surround most of the lake. Over the past 15 years, the bacterium Leptospira, commonly found in agricultural animal waste, has been detected in this lake water, and some people have become sick. The contamination of the lake by Leptospira may best be prevented by A) better control of agricultural nonpoint source pollution of the lake. B) doubling the amount of fluoride added to the city's public water supply. C) restricting swimming in the lake to only weekends. D) requiring the power company to find another source for its cooling water.
Volcanoes are formed ________
A) as a result of water seeping into the core from the surface B) in subduction zones or in rift valleys C) where the earth's crust is especially thick D) after earthquakes have damaged the earth's crust E) when the earth's core erupts onto the surface