Identify the best general reference you must use to locate the answer to each of the questions below.
1. What are the characteristics of Homo sapiens?
2. What was the population of the world back in 1990?
3. In which page you can locate the term archaeology in a published periodical? 4. Where can you find the photos of your classmates in elementary?
5. How can you use your new baking oven?
6. Where can you locate the information mentioned published journal?

7. What are the two different meanings of invalid?

8. What is the climate in Vietnam?
9. Where can you find the contact number of your company event's major sponsor?
10. What happened during the Stone Age?
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