Well can I please see what is the question so then I can answer it if u don’t mind
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.