All of the following occurred due to the invention of the railroad except A transportation costs increased
В. agricultural activities moved further west
transportation times decreased
D. agricultural products were shipped longer distances
Please select the best answer from the choices provided
СА
OB
OC
OD

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?

What is an example of a line segment

Some gamma ray bursts are hypothesized to come from mergers of neutron stars or black holes. if this hypothesis is correct, what else should we in principle be able to detect from such mergers? a. gravitiational waves b. x-ray bursts c. significant disruption of gas thousands of light-years away in the surrounding galaxy d. an "afterglow" of bright visible light, lasting for weeks