Answer:
I don't speak Spanish but if you know English I could try to help you
Explanation:
Billions of years, there isn’t anything else
Continentality
I hope this helps
Have an AMAZING day :)
-Emma
1
The rest are wrong b/c it helped <em>expand</em> China rather than isolate it, they didn't use ships on the Silk Road, and it brought better communications, etc. between countries.
