Which of the following options is the most efficient way to transport freight?

A. trains
B. large trucks
C. small trucks
D. airplanes


Answer: A

Environmental & Atmospheric Sciences

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Not all species introduced to a new area become invasive. Why have some introduced species become invasive, while others have either died off or become a harmless addition to our landscape?

What will be an ideal response?

Environmental & Atmospheric Sciences

Which of the following contains b(1 ? 4 ) glycosidic bonds?

A) amylopectin B) amylose C) cellulose D) all of these

Environmental & Atmospheric Sciences

The reintroduction of wolves into the Yellowstone ecosystem has been considered a success because

A. the wolves are thriving. B. local ranchers fear that wolves will attach cattle. C. ecotourism has decreased. D. biodiversity of the ecosystem has been re-established and sustained. E. global warming has ceased.

Environmental & Atmospheric Sciences

How much more ground motion occurs when comparing a magnitude 2 earthquake to a magnitude 3 earthquake?

How much more ground motion occurs when comparing a magnitude 2 earthquake to a magnitude 3 earthquake?

  • 0.1 times as much
  • 2 times as much
  • 10 times as much

Environmental & Atmospheric Sciences