Which of the following events might break down food entitlement systems?
a) Natural disasters
b) War
c) Displacement of land-holders
d) All of the above
d) All of the above
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When a strong magnet is brought near to a sample which is known to contain both iron and sulfur the iron and the sulfur are separated from one another. What type of material is this sample?
A) a compound B) a homogeneous mixture C) a heterogeneous mixture D) There is insufficient information to answer.
In the Pacific Northwest, stresses are transmitted upward from the subducting plates, forming strike-slip faults that rupture the surface, as in Seattle.
Answer the following statement true (T) or false (F)
Which of the following is not a factor that will influence infiltration of groundwater?
A) Acidity of precipitation B) Steepness of the slope C) Nature of surface material D) Intensity of rainfall
Which of the following situations is most likely to result in formation of a covalent bond?
A) when an electrically positive species interacts with an electrically negative species B) when two nonmetallic elements interact to form a compound C) when two electrically negative species interact D) when two electrically positive species interact