Well, I think, the main point that makes the difference between "Mending Wall" and “The Purple Cow” is actually demonstrated by the rhyme. Just read each poem one more time and feel that one of them is readed easily, words matched with each other like a song's lyrics so that you can smoothly go on reading whereas "Mending Wall" is made with structure of blank verse that emphasises every line and makes reader feel it deeply.
The true meaning of friendship is to be by someone side through thick and thin, Even if they were to change, you are suppose to be the bigger person. You are suppose to love and respect on every level. Also guide them, when you feel as though they are falling etc.
Answer:
The answer is to show that Earth's water is not changing rapidly as it once was.
