Answer to Question 1
Answer: Appendices commonly include questionnaires and cover letters, sample forms, computer printouts, statistical formulas, financial statements and spreadsheets, copies of important documents, and so on.
Appendices can accommodate a wide variety of materials. Almost any information that is tangentially related to a report can be included in the appendix.
Answer to Question 2
Answer: TRUE
Explanation: Appendices are used for material that may not be directly relevant to all readers. Bibliographies list the sources directly referenced or indirectly consulted for the report. Indexes provide a quick way to look up subject matter.