The answer would be : ranchers' refusal to use technology. During the late 1880s, the technologies began to rapidly developed within the industry. But back then, a lot of ranchers are really comfortable in using traditional ways (using slaves) and they refuse to use technology
C. A depression in the ground caused by the removal of soil or bedrock.
Thousands attend the Hiroshima Peace Memorial Ceremony annually. Other critics argued that American diplomats had ulterior motives. The Soviet Union had entered the war against Japan, and the atomic bomb could be read as a strong message for the Soviets to tread lightly.
It was the transition to new manufacturing processes in Europe and the US from 1760 to about 1840
