Answer:
In order to prove that your cause-and-effect relationship exists, it is important to include evidence to support your claim.
Explanation:
Whenever you present a cause-and-effect relationship or you claim the existence of it, it is necessary to have evidence to support your claim, if any information or idea can not be proved then it can not be subject of study since it will represent a false hypothesis, the to show an action that creates a reaction as true it is necessary to prove it.
