The supply and demand conditions facing a firm that makes widgets and generates a negative externality by dumping a highly toxic sludge in a nearby river is given in the table below. The equilibrium price and quantity when social costs are taken into account are
A. Price = $55, Quantity = 30
B. Price = $40, Quantity = 55
C. Price = $30, Quantity = 20
D. Price = $30, Quantity = 80
A. Price = $55, Quantity = 30
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You have decided on a career as an ecologist. Your work could possibly be which of the following assignments?
a. exploring the earth's crust to locate mineral resources b. negotiating air quality agreements among different countries c. studying interactions of wolves and their prey species in Yellowstone National Park d. studying depletion of large aquifers in the midwestern United States e. exploring possible wind corridors in the intermountain west for placement of wind farms
In general, the closer a location is to the center of a passing cyclone, the shorter the time between the arrival of the warm front and the arrival of the cold front
Indicate whether the statement is true or false
how do reproductive barriers relate to the biological species concept?
a. Prezygotic barriers produce a new population of the same species, whereas postzygotic barriers produce new species. b. Reproductive barriers prevent two populations from interbreeding, producing unique species. c. Geographic barriers always separate two biological species. d. Reproductive barriers lead to the extinction of one species, opening a habitat for a new species to occupy.
Disposal of radioactive wastes in clay-rich sediments of the deep sea floor
A. would provide some containment of radioisotopes even in the event of leakage of wastes from canisters. B. would be impractical because of the instability of the sea floor. C. is not seriously under consideration because of the danger of water pollution. D. is presently banned by international treaty.