Answer:
When they hear something worthwhile and hang onto it forever.
Explanation:
An explanation isn't needed for this statement.
Answer: the systematic investigation into and study of materials and sources in order to establish facts and reach new conclusions
Answer and Explanation:
You should use multiple sources to show that your essay has a diversity of information, being a rich essay, where you researched different points of view and endeavored to create it according to several relevant works on the subject. In addition, multiple sources provide more support for you to create your arguments and your own original ideas, as it offers you a more complete range of information.
