Professor Anders is interested in how family relationships change over time. During the past two decades, he has kept track of and repeatedly surveyed the same group of 3,000 participants about changes in their relationship with their parents and siblings. Professor Anders is most likely a psychologist.

answer; negative punishment;

rain should be the answer.

d.

thist title points out that you are explaining the nature of the u.s. government. it is the most specific. a representative government consists of a government where decisions are taken according to a voting system. the most essential aspect of a representative government is found in the different structures where voting rights are granted to different groups of people. for example, voting for governor, mayor, president, local police chief etc.