The British were at a disadvantage since they were fighting on land that was not their own, and they didn't know it as well.
In the late 7th century, the Native American population dropped drastically due to a <span>contagious disease.
</span><span> contagious </span>diseases can transmit from person to another easily.
<span>3. Cultural exchanges between the Middle East and Europe grew</span>
Using irrigation system was the practice closely associated with most ancient river valley civilization.
I think it is b because i know all other sources can be a freshwater ecosystem and swamps have a freshwater and salt water kinds so ya
