Nick Morgan is a scientist with the National Oceanic and Atmospheric Administration (NOAA). He is stationed at the South Pole Observing Station in Antarctica. Nick and his colleagues collect various measurements such as carbon dioxide and solar radiation levels to enable scientists to track changes and determine trends. Nick says, "The data we collect is also used to improve climate models so we can try to see changes in the future." Nick's research would be classified as .

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? a) the infestation moved from west to east. b) the infestation moved from east to west. c) georgia had better ways to deal with the problem. d) alabama was further from the insect's point of origin.