What two major acids are involved in acid deposition? Where does each come from?
What will be an ideal response?
The two major acids involved in acid deposition are nitric acid and sulfuric acid. Nitric acid primarily comes from tailpipe emissions (56%) and fuel combustion at fixed sites (39%), and sulfuric acid primarily comes "from fuel combustion (mostly from coal-burning power plants)" (86%).
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Tucson’s population grew from about 7500 in the year 1900 to about 520,000 by 2015 (with about 1,000,000 in the surrounding county), and so a portion of the observed temperature increase here may be due to the urban heat island effect. Using your answer in question 2 as a starting point, use the EPA’s upper-end estimate of the UHI effect (5.4°F) to calculate the approximate amount of temperature increase that probably cannot be explained by urbanization. (Note: This answer is based on simplistic assumptions.)
The question is based on Figure 24-6, a chart showing average annual temperature from 1905 to 2015 in three U.S. cities: Nome, Alaska; Bozeman, Montana; and Tucson, Arizona. What will be an ideal response?
Name a valley (or “canyon”) other than Bloody Canyon that has glacial steps. How many steps are there? How many lakes are found in the series of steps?
The question is based on Map T-13, the “Mono Craters, California” quadrangle (scale 1:62,500; contour interval 80 feet), and Figures 48-5 and 48-7, a detailed map and stereogram, and Map T-23a, a satellite image, of the same region. The heavily glaciated eastern crest of the Sierra Nevada is seen along the western sides of the map and stereograms (37°52'37"N, 119°12'40"W). During the Pleistocene, glaciers in this region flowed down the valleys of the eastern slope of the Sierra toward the Mono Lake basin to the northeast. Large lateral moraines are found at the mouths of each canyon. What will be an ideal response?
What mechanism accounts for differential survival and reproduction among members of a species?
a. neptunism b. stratigraphy c. formation d. natural selection e. orogeny
Ocean circulations
A) can be changed by changes in ocean salt concentrations. B) include both surface currents and deep subsurface currents. C) probably caused the Younger Dryas. D) can have substantial effects on climate. E) all of the above