What is the author’s purpose for including paragraph 15?

"dogs make wonderful pets because they us stay happy and healthy"the topic sentence is "dogs make wonderful pets" i need writing a sentence that is unrelated to the topic and can be eliminated.

Why can’t the man get the third fire started?

Read the following entries from the online etymology dictionary based on the information above, what does the world microcephaly most likely mean? a. dull or unintelligent b. worldly thinking c. having a large head d. bigger than usual