How can you determine a source's credibility? a. by checking how many others have accessed the information b. by checking how transparent the source's author is c. by checking whether the source is easily accessible d. by checking whether or not the information is easy to understand

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.

What activity is not one of the primary ways political parties shape public policy

Which committee is considered the most powerful in all of congress? a. committee on armed services b. committee on foreign affairs c. committee on ways and means d. committee on the judiciary select the best answer from the choices provided a b c d