How did use of groundwater affect surface water resources in the case of the San Joaquin River,
California? What will be an ideal response?
Heavy groundwater withdrawals lowered the water table to the extent that the river changed from a
gaining stream in 1906 to a losing stream by 1966. This had a profound impact on surface water flow
because of losses to the subsurface.
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How does hail form? What factors govern the ultimate size of hailstones?
What will be an ideal response?
An air mass moves out of its source region. Two days later, the lower layers of the air mass are found to be warmer than they were originally. What letter should be added to the end of the air mass's classification code?
A) m B) k C) w D) c
The basic premise behind the "The tragedy of the commons" is
A. when assessing risk, people frequently overestimate unfamiliar risks. B. pollution prevention is costs less than pollution clean-up. C. a resource becomes overexploited when its ownership is shared. D. All of these are correct.
Among layers of the soil horizon, the one with the most organic material is ________
A) O B) A C) B D) C E) R