Nice numbering system you got going on there.
3. Probably disease. Native Americans didn't have the immunizations built up that the Europeans had so a large portion of them were wiped out by the mere presence of Europeans.
<span>3. digging irrigation canals.
Sumerians lived in present day Iraq which is mostly desert. Being arid with periods of rain, the region of Sumeria was difficult to cultivate crops. The Sumerians used a system of canals and gates to create watered plains with flooding and then closed them off during growing seasons. </span>
Prosperity led to the creations of many works of art
Things would still be produced by hand. We would not have factories polluting at such a high rate. Production would be slower.
Just by the title you can infer that the passage is mainly about the connection between a person and the flu. It may be how we can get the flu, the effects of the flu and way more.
