How do many exotic species find their way to new waters?
a. Migrations
b. Carried in the ballast water of tankers
c. Marine birds
d. Storms
ANS: B
Sometimes these species out-compete native species. When they enter an area, they often cause a
decline in the biodiversity of the community. Information can be found in the section Marine
Pollutants May Be Natural or Human Generated.
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A) employment, school years completed, voting history B) empowerment, employment, reproductive health C) empowerment, reproductive health, school years completed D) employment, reproductive health, literacy rate E) literacy rate, empowerment, reproductive health
Distinctly alkaline diagnostic horizons, thin profiles, lack of organic material, and dominance of sandy materials are features most closely associated with which soil order?
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Improved farm equipment and technology introduced during the Industrial Revolution resulted in fewer farm workers needed in rural areas and a major rural-to-urban shift in the population.
a. true b. false