If your asking where Most people in cities get there water.
Then the answer is by delivery through pipes.
Explanation:
First do the Last, First, Then middle names of the author(s). Then the title of the article, then magazine. after that the date it was published and finally the page number the information was found on. example: Last, First Middle "title of article" title of magazine
The answer is a because they decompose the dead matter and recover the nutrients thereby providing nutrients for plants