Explain how the rivers are useful to people in those countries with the highest population density

Rivers provide water, and a transportation route (before roads and railroads). They can also form a natural boundary or barrier to protect or defend people. Rivers can provide fish and can also make the lands around them very fertile. if they overflow their banks occasionally.

Explanation:

the answer is "c" im pretty sure.

1."lessen the worth of ."

2."increase the worth of."

3." beyond the worth of."

4."against the worth of ."