Well, it depends on all on the sources. Web sites such as .org can be a reliable source. Some things that are usually reported, have an evidence and a claim to support what the article, and it should have a publisher and date at the bottom of the page. some common things to look for are headlines, a picture of proof, publisher, and the source^_^
The answer to your question is 5
Answer:
North America contains the largest number of oak species, with approximately 90 occurring in the United States, while Mexico has 160 species of which 109 are endemic. The second greatest center of oak diversity is China, which contains approximately 100 species.
Explanation:
Hope this helps. If it doesn't I don't know what to say.
Figure out what the author wants you to learn
