The southern European country with the highest net migration rate in 2010 was Spain.
a. true
b. false
a. true
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In which areas on the accompanying figure is condensation occurring?
A) 1 and 2
B) 2 and 3
C) 3 and 4
D) 1 and 3
E) 2 and 4
Which of the following is not a function that humus and other organic matter serve in making a soil healthy?
A) Improving infiltration B) Retaining water C) Increasing evaporation rates D) Retaining and cycling nutrients E) Reducing erosion
What factor is most responsible for changing salinity values found in high latitudes?
A. fresh water input B. mixing action C. evaporation
Which of the following is valid for how rocks weather?
A. most minerals in granite weather at nearly the same rate and so granite has smooth surfaces B. limestone weathers rapidly in wet climates but can form cliffs in dry ones C. quartz is very soluble during weathering at low temperatures D. as a granite weathers, quartz rapidly decomposes into clay minerals