The weight of an object is defined to be the force
A. equal to your normal force on any surface.
B. you exert against a supporting surface.
C. due to gravity only.
D. none of the above
Answer: B
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If global fertility rates remain at 2008 levels, the United Nations predicts that world population will surpass ________ billion in 2050
A) 7 B) 5 C) 9 D) 10 E) 4
Which nation in the region has the highest percentage of its GDP on military expenditures?
A) Saudi Arabia
B) Israel
C) Iran
D) Egypt
E) Morocco
Many of the civil wars occurring in Subsaharan Africa are not reported worldwide by the __________, even though the numbers of people affected, injured, and killed are very high.
a. non-governmental organizations b. African heads of state c. All of these d. African Union e. news media
Which rock type does not have a strong affinity for radioactive elements?
A) felsic igneous B) mafic igneous C) sedimentary D) metamorphic