Discuss at least three difficulties associated with protecting marine fisheries.
What will be an ideal response?
Marine fisheries are difficult to protect partly because humans' ecological footprint is growing very rapidly. It is difficult to monitor the impact of this footprint simply because of the speed at which it is growing. Also, marine fisheries are inaccessible or invisible to many people. Many humans are simply unaware of what goes on in the oceans far from shore. Additionally, many people erroneously view the sea as an inexhaustible resource. They think that oceans can absorb as much pollution as humans put there, or that the oceans can produce unlimited numbers of fish. Last, much of the ocean lies outside the legal jurisdiction of any country. National conservation laws simply do not apply to much of the ocean, leaving it open to exploitation.
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Deep-well injection of hazardous wastes has the advantage that
A) it falls under the umbrella of the Superfund Cleanup (SARA). B) injected materials can easily be recovered for further treatment. C) solids, liquids and gases can be disposed with this technology. D) the deep-injected liquids should not contaminate ground water or surface ecosystems.
Identify and describe the basic function of a gene
What will be an ideal response?
What are tropical cyclones and what conditions are needed for their development?
What will be an ideal response?
On cold, dry winter nights, why is it common to experience below-freezing temperatures near the ground, and air more than 10°F warmer at your waist?