The region of the world with the highest concentration of poor, as measured by the percentage of the population living on $1.25 per day, is ________.

Coercion, material and financial inducements, and persuasion and moral exhortation are all means by which governments can enforce

A. liberty. B. anarchy. C. unwritten social contracts. D. regulations.

Methane, carbon dioxide, nitrous oxide, and water vapor are examples of _____ that trap the sun's heat and hold it close to the earth's surface

A) deadly gases B) greenhouse gases C) heavy gases D) massive gases E) noxious gases