Question

You get brainlylisy answer if this is answered correctly within an hour.

Answer 1

Answer:

their elaborate structures

Answer 2

Answer:

B, their number system

Explanation:

The Arabic Number system (1,2,3,4,5,6- Numbers like these.) was created in India and later adopted by Arabs. The reason they call it Arabic, is because the Europeans were introduced to it from Arabs and not Indians, so they assumed Arabs made it.