When Nellie Newton is inside a freely-falling elevator she has
A. no weight.
B. reduced mass.
C. no force due to gravity on her.
D. all of the above
Answer: A
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When using the dependency ratio, the age group considered to be the least dependent is ________.
A. 15-64 years B. under 15 years C. under 15 years and over 64 years D. over 64 years
If a glacier does not have debris embedded in its base, then it is not a very effective agent of abrasion
Indicate whether the statement is true or false
As a result of air pollution in urban areas, more children have ________
A) malaria B) sickle-cell C) asthma D) emphysema E) schistosomiasis
In your opinion, what goal(s) should be prioritized in efforts to reclaim former mine sites?
a. Restore lost biodiversity. b. Minimize future risks to public health. c. Improve soil and water quality. d. All of the above should be prioritized. e. None of the above. I believe reclamation is a waste of money.