Question: The causes of deforestation include the following factors, except

Answer: indigenous people

Question: __________ are a proposed solution to enhance species survival by effectively creating a large preserve from several smaller ones.

Answer: corridors

Question: Since tropical forests typically have only a few commercially valuable trees per acre, logging operations

Answer: do extensive damage because of road building and injury to surrounding trees.

Question: The most sustainable land use in tropical forests is probably

Answer: milpa farming.

Question: Although most of the world’s forests are shrinking, biologists are especially concerned about tropical forest loss because

Answer: they contain such high biodiversity

Question: Old-growth forests are notable for containing species that

Answer: are highly adapted to their special environment.

Question: Knowing that there are many endangered species found in the old growth forests of the United States, what might you expect remains today of all the old growth forests that stood in the United States before European settlement?

Answer: less than 10 percent

Question: Most commercial loggers prefer “clear-cut” harvesting because it

Answer: is the most efficient, cheapest harvest method using large, fast machinery instead of costly labor.

Question: Economically, monoculture forestry is advantageous for the loggers because

Answer: it produces large quantities of a single type of tree for a particular use, such as building timber or paper pulp.

Question: Annually, the Forest Service __________ on timber sales mainly because of the emphasis on

________________.

Answer: loses money; building roads into wilderness areas