The greatest potential for sustainable growth in fisheries is in
A) the major rivers of the world.
B) aquaculture.
C) freshwater capture fisheries.
D) saltwater capture fisheries.
B
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The next frontier in resource extraction in the region may be
A) oil-tar sands B) deep -sea mining C) the generation of electricity from tidal currents D) hydraulic fracking E) wind turbines erected on platforms erected in deep oceanic waters
These pillars are remnants of layers, most of which have been stripped away by wind erosion. If this occurred in less than 5 years you might reasonably conclude that
A) the pillars are remnants of volcanic necks.
B) this area recently has become a productive place to produce agriculture.
C) there must have been drought, overgrazing, or some short-term climatic change.
D) this area was originally a lake.
The aerated zone ________.
a.) is a well-oxygenated, shallow aquifer b.) lies below the capillary fringe zone c.) pore spaces are filled with water d.) lies above the water table
Rising mortality rates and declining health care in Russia, have brought life expectancy levels identical to:
A) Turkmenistan B) Estonia C) Krygyzstan D) Kazakhstan E) Latvia