To build an index model, one must assign a(n) ________ to each variable or factor under consideration:
A. ID
B. weight
C. numeric score
Answer: B
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Which of the following North American environmental disasters happened first?
A) The Dust Bowl B) The near extinction of American Bison C) A massive flood of the Mississippi River, which killed hundreds. D) Heavy air pollution over the industrial region around Pittsburg Pennsylvania
If the firn limit on a glacier does not change from year to year, the glacier has a balanced snow budget. Indicate whether the statement is true or false
A significant achievement of the first Agricultural Revolution was the creation of surplus
Indicate whether the statement is true or false
In which of the following situations would it probably be less environmentally damaging for you to use paper bags at the grocery store?
A. When paper bags are reused by the grocery store and when paper and plastic bags are both recycled B. When I use plastic grocery bags for my trash instead of buying separate plastic trash bags C. When paper bags are reused by the grocery store D. When paper and plastic bags are both recycled E. All of these are correct