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95 which of the following best states the authors

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95.Which of the following best states the author’s view concerning the relationshipbetween the ecological scientist and the land manager?a.) The scientist has not provided the manager with clear guidelines that can beused in regulating the productivity of land.b.) The scientist has provided theories that are too detailed for the manager touse successfully.c.) The scientist and the manager, in attempting to regulate the use of semiaridland, have ignored the traditional behavior patterns of pastoral communities.d.) The manager has misunderstood and hence misapplied the suggestions ofthe scientist.
96.With which of the following statements concerning desertification would theauthor be most likely to agree?
97.According to the passage, a statistical description of the climate regime of an aridor semiarid region would probably be.
98.The tone of the passage can best be described as
Coral reefs are one of the most fragile, biologically complex, and diversemarine ecosystems on Earth. This ecosystem is one of the fascinatingparadoxes of the biosphere: how do clear, and thus nutrient-poor, waterssupport such prolific and productive communities? Part of the answer lieswithin the tissues of the corals themselves. Symbiotic cells of algae known aszooxanthellae carry out photosynthesis using the metabolic wastes of thecoral thereby producing food for themselves, for their corals, hosts, and evenfor other members of the reef community. This symbiotic process allowsorganisms in the reef community to use sparse nutrient resources efficiently.Unfortunately for coral reefs, however, a variety of human activities arecausing worldwide degradation of shallow marine habitats by adding nutrientsto the water. Agriculture, slash-and-burn land clearing, sewage disposal andmanufacturing that creates waste by-products all increase nutrient loads inthese waters. Typical symptoms of reef decline are destabilized herbivorepopulations and an increasing abundance of algae and filter-feeding animals.Declines in reef communities are consistent with observations that nutrientinput is increasing in direct proportion to growing human populations, therebythreatening reef communities sensitive to subtle changes in nutrient input totheir waters.

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