Professor linwood always makes a point of learning the names of all the students in her class. she used to be able to do this in her head but has recently found that she needs note cards to her remember. this change in behavior is best described as

This change in behavior is best described as "compensation".

Alfred Adler, pioneer of the school of individual psychology, presented the term compensation in connection to inferiority feelings. Compensation is a psychological procedure that might be either cognizant or, all the more much of the time, an oblivious defense system by which a man endeavors to compensate for real or envisioned physical or mental inadequacies.  

well, there are a lot of places we get information about earth from. like science classes, websites, books, newspapers, etc.

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.