Why was the DEW Line in the Far North such an important part of U.S. and Canadian security during the Cold War years?
What will be an ideal response?
During the Cold War, the DEW Line (Distant Early Warning system) was a joint U.S.-Canadian project designed to establish radar stations for tracking potential attacking Soviet aircraft and missiles to help protect the United States against the perceived threat of nuclear attack.
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Does the 1992 Basel Convention advance or hinder environmental justice? Explain your reasoning.
What will be an ideal response?
Of the three sciences, physics, chemistry, and biology, the most complex is
A. biology, because it is based upon both the laws of chemistry and physics. B. physics, because it involves many mathematical equations. C. chemistry, because there are so many possible combinations of atoms. D. All three of these sciences are equally complex.
What is the most productive photosynthetic plankton apart from Cyanobacteria?
a. Dinoflagellates b. Coccolithophores c. Diatoms d. Ciliates
Which factor must increase in order for a river to pick up larger particles?
A) velocity B) viscosity C) shear stress D) water depth