The weather associated with a Low can be significantly different than that of a High. The differing vertical motions account for some of these differences. Vertical motions lead to temperature changes in the rising or sinking air. The temperature changes occur because air warms when it is compressed and cools when it expands. In the open atmosphere, air pressure is less at increasing altitudes. Consequently, air expands and cools when . Air is compressed and warms when . A. ascending, descending
B. descending, ascending
C. ascending, ascending
D. descending, descending

Which leader was the first african american president at two different institutions for higher learning

According to the federal regulations, which of the following studies meets the definition of research with human subjects? a. a researcher uses the customs office’s passenger lists for ships bringing immigrants to the us between 1820-1845 to track the numbers of immigrants from certain ethnic groups.b. a researcher conducts a linguistic study of comments posted on a local public blog.c. a developmental psychologist videotapes interactions between groups of toddlers and their care givers to determine which intervention methods most effectively manage aggression.d. a researcher asks the director of a local free clinic about the number of patients in the last two years with newly diagnosed hiv/aids.

An individual who is experiencing a prolonged period of stress would likely have levels of circulating than an individual who was not experiencing stress.