What is the greatest contributing factor in the loss of polar bears in arctic areas?
A) decline in sea ice
B) the decline of lemmings; the primary food of the polar bear
C) the tundra shifting northward
D) hunting of the polar bear by the Inuit people
E) fires in the taiga and tundra
Answer: A
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Which of the half-reactions below would be complementary and balance the following half-reaction? Zn+2 ? Zn
A) Cu ? Cu+2 B) K+ ? K C) 2 Cu ? 2 Cu+2 D) 2 K+ ? 2 K E) Cl2 ? 2 Cl-
Distinguish between clouds and fog
What will be an ideal response?
Several factors underlie the decline in manufacturing in the developed world. These include all of the following EXCEPT
A) the cost of wages in Europe and North America relative to those in in the developing world. B) high pension costs for workers in developed countries. C) advances in technology made manufacturing more capital intensive. D) industrial firms reinvested their net revenues on research and development to remain competitive. E) shortages of human capital and high transportation costs.
A(n) _______________ air mass is the coldest air mass that impacts North America. (two words)
Fill in the blank(s) with correct word