A colon, when placed between two numbers indicates a ratio.
For example, 1:1 is saying that something is at a 1-to-1 ratio.
This would be better in the Math section though, but I'm happy to answer.
True they all are focused around the overuse of whatever substance
Answer:
Two structures used in the text are:
descriptions and sequences.
Explanation:
The reasons backing this answer are that in the first place descriptions are made to explain certain topics or provide information so that the reader can understand the perspective of the author. Also, the sequence is a progressive order that the author established to communicate his ideas so they can be understood by the author. In other words, the author is going to deliver information progressively according to the state of the development o the description it does.
