Colorado State University professor Bill Gray's forecast for the 2005 the Atlantic hurricane season
A) correctly predicted both an above-average season and the total number of storms.
B) incorrectly predicted a below-average number of storms for the season.
C) correctly predicted both an above-average season, and an increased number of storms from 2004.
D) correctly predicted an above-average season, but greatly underestimated the total number of storms.
E) none of the above
D
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In a country where there are increasingly more households, ________
A) birth rates should remain constant B) consumption should increase C) birth rates should increase D) population growth rates should increase E) consumption should decrease
Invasive species represent a threat to biodiversity worldwide. Based on either the examples presented in the textbook or outside sources, describe several invasive species of concern in your area
What factors contributed to their spread? Why are these species of concern, both in a broad context, as well as within your area.
Which of the following statements most accurately describes the benefits of Bt corn?
A) Because it contains a certain gene removed from a soil bacterium, Bt corn is immune to the European corn borer. B) Bt corn is resistant to the pesticide Bt, so farmers growing Bt corn can use Bt on the weeds in their cornfields without it harming their crop. C) Bt corn produces increased yields because it is resistant to infection from the Bt virus that lives in agricultural soils. D) Although Bt corn has its benefits, the use of Bt corn runs the risk of pests becoming immune to its toxins.
Sedimentary rocks made up of alternating thin layers of chert and iron minerals, mostly the iron oxides such as
hematite and magnetite, are called ____. a. banded iron formations (BIFs) b. limestones c. sand dunes d. evaporates e. blue-green algae