For much of the last quarter century, the leading theory of the driving force behind tectonic plate motions envisaged large scale convection currents in the upper mantle, which can be transmitted through the asthenosphere.
The SunBelt is a region defined by warm climate of the United States. Is not a political example although this region coincide with a very fast growing economy and population for the last decades.
Corect answer is C - a formal example
Legislation to protect refugees may not be the first thing that comes to mind in these days of debate over immigration reform.....
The answer is: [A]: troposphere .
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The second one is correct
