Answer:
About 3000 years, which is a very long time
Explanation:
https://study.com/academy/lesson/how-geography-isolated-ancient-china.html
That video will explain everything. I have already learned this in school, and it is very important on the test. VERY IMPORTANT.
Cool ranch Doritos and kool aid
I would answer D as Greece is not land-locked and tourism is a big industry there.