How did innovations such as steam power, air brakes, automatic lubricator, and steel tracks affect the railroads? a. they impoved the ability of railroads to transport goods safely and efficiently. b. they reduced the cost of doing business and hurt profits. c. they created licensing problems that the government was slow to overcome. d. they increased the cost of doing business and reduced profits.

The president has the power to grant pardons . true or false

The maps below show the middle east. which best explains how the green areas depicted in the image on the left are reflected in the population map on the right? populations are greater in fertile areas that are close to freshwater sources, which is why more people live near deserts. populations are greater in fertile areas that are close to freshwater sources, which is why more people live near oceans. populations are greater in fertile areas that are close to freshwater sources, which is why more people live near mountains. populations are greater in fertile areas that are close to freshwater sources, which is why more people live near rivers.

This is the belief that a nation must develop and maintain a strong military force in order to pursue and defend its national interests.