Identify and discuss FOUR diseases that can affect the community because of the unhealthy environment.​

answer; researchers typically cannot control people's sexual behaviors as would be necessary in an experiment;

south, because if you took a map you would see texas is directly in the middle of east and west, but it is also downwards towards mexico, therefore it is south

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."

could you show the options for the answers? : )