Which statements describe effects of changes in information technology? check all that apply. 1) economists are better able to predict how resources should be allocated. 2) governments can make better economic policy decisions. 3) it has become more difficult for businesses to identify when shortages will occur. 4) the amount of time to share data between locations has steadily increased. 5) employment in information technology sectors has grown.

Which statement best explains how maynard jackson's 1968 decision foretold his future? he was elected mayor of atlanta in 1973 he was elected governor of georgia in 1990. he started his own bond and security business he removed segregation signs form water fountains at city hall

Marcy tests a solution with a strip of blue litmus paper. the paper turns red. the solution is acidic basic neutral

It is widely assumed that people need to engage in intellectual activities such as solving crossword puzzles or mathematics problems in order to maintain mental sharpness as they age. in fact, however, simply talking to other people—that is, participating in social interaction, which engages many mental and perceptual skills—suffices. evidence to this effect comes from a study showing that the more social contact people report, the better their mental skills. which of the following, if true, most seriously weakens the force of the evidence cited? (a) as people grow older, they are often advised to keep exercising their physical and mental capacities in order to maintain or improve them. (b) many medical conditions and treatments that adversely affect a person's mental sharpness also tend to increase that person's social isolation. (c) many people are proficient both in social interactions and in solving mathematical problems. (d) the study did not itself collect data but analyzed data bearing on the issue from prior studies. (e) the tasks evaluating mental sharpness for which data were compiled by the study were more akin to mathematics problems than to conversation.