Answer:
There is very little oxygen
Explanation:
That should be it. I'm 99% sure bc where there is higher altitude, there is less oxygen
Answer:
In addition to the drought and marauding enemy theories, scientists suggest that things like poor sanitation, pests, and environmental degradation may have caused the Anasazi to move.
Explanation:
More hours means more money? need more money to support themselves/possible a family?? what is the context
Answer:
Specie Circular, (July 11, 1836), in U.S. history, an executive order issued by President Andrew Jackson requiring that payment for the purchase of public lands be made exclusively in gold or silver.
Explanation:
Answer:
The collapse of previously existing states, such as the Song dynasty of China
Explanation:
The Mongol Empire expansion covers areas such as present-day Mongolia, China, parts of East Asia like Southern Asia, Middle Eastern part, and Eastern Europe. This places Romania, Pakistan, Siberia, Ukraine, Burma, Russia, Belarus, and many others around the region. This expansion spanned around 1206 to 1294, it led to the collapse of previously existing states, such as the Song dynasty of China was between 960 to 1279.
