Dr. arce is interested in the relative importance of genetic and environmental factors on human development.
this is known as the controversy.

Recently, there has been pressure to loosen clean air standards. use economic arguments to support or oppose this proposed action.

In 1914, alabama produced 1.7 million bales of cotton, but three years later produced only 515,000, bales. meanwhile, in georgia, 5.2 million acres of land was dedicated for cotton production in 1914, but by 1923 there were just 2.6 million acres used for growing cotton. all of this was the result of the work of a tiny insect: the boll weevil. alabama and georgia first felt the effects of the boll weevil at different times. what would account for this difference in timing?

People are willing to pay more for a diamond than for a bottle of water because