As more water flows through a river, its speed will
a. stay the same.
b. increase.
c. decrease.
d. reduce friction between the water and the streambed.

Witch layer of the atmosphere has the most air pressure

Distance that the transcontinental railroad covered from omaha to san francisco.

Why is the improved education of girls so important, especially with regard to economics and health? what are the leading causes of death among teenage girls in africa and how are they tied to education?