Faults are "locked" because ________
A) otherwise they would have earthquakes all the time
B) earthquakes only form when the rocks are free to move
C) elastic rebound occurs on faults
D) high confining pressure increases friction on the fault
E) major faults occur at plate boundaries that only move occasionally
D
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Which of the following is the correct stoichiometric relationship for the synthesis of Lexan?
A) two moles of phosgene for each mole of the disodium salt of bisphenol A B) two moles of the disodium salt of bisphenol A for each mole of phosgene C) one mole of the disodium salt of bisphenol A for each mole of phosgene D) none of the above
Calculate the specific humidity if the relative humidity is 50% and the capacity of the air (saturation specific humidity) is 30g/kg
What will be an ideal response?
There has been legislation designed to encourage protection of wetlands, but funding has been greatly reduced, because ________.
- there has been no funding available for any federal projects - the ecosystem services of wetlands has been ignored - wetlands have little or no economic value - green taxes have been opposed by state governments - a system of green taxes is already in place to fund the needed work
In developed countries, the most recent increases in agricultural productivity have come from
A. New crop varieties B. An increase in the land being used for agriculture C. Irrigation, increased fertilization, and new crop varieties D. Increased fertilization E. Irrigation in arid areas