The answer is 18 hope this helps .
Answer:
China's trade increased.
Explanation:
Due to Zhang Qian's exploration of the West, the trade routes of China were greatly expanded.
The French and Indian War affected the Native Americans because they were forced to fight for their land, many of them died in the process and in the end they were forced out of their land and were treated horribly.
I believe the answer is: sleep debt
Sleep debt refers to accumulative effect that keep increasing as people keep not getting enough time for proper sleep. Studies show that in the long run, sleep debt would resulted in decreasing overall productivity and the actual effect of repaying sleep debt could only be felt if the debt is paid within one week period.
