I would say it will defitley be either B or D, what have you been reading about or doing before this? If you were reading about how healthy they are it would be D, but if you were reading how they are being destroyed it would be B
Answer:
1
Explanation:
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.
Surveying encompasses every aspect of land, property and construction and offers a wide variety of career options. <span>There are many types of disciplines in surveying and a surveyor during their career may decide to specialize in a particular discipline or may gain experience in all disciplines.</span>
B, E, F, G
I hope this helps :))