The purpose here is to take a look at some newspaper articles that use Comparison or Contrast to varying degrees and for different ends. I think it would be very interesting to analyze the purposes of the authors to these articles. Read these articles from an analytical perspective. The first article, Learning Patience, Given Time , is an article contrasting those who are always on time and those who are always late for appointments. The second article, A Dandy Lawn Without the Dandelions , might interest you who are agronomy students.
Some farmers raise crops for human or animal consumption.
However, the article, Making a Case for Gun Ownership , contrasts gun ownership in Israel and the US to support his position.