Explanation:
The equator is an imaginary line on Earth's surface that runs between the north and south poles (the northernmost and southernmost points on the Earth). It also divides the Earth into the northern and southern hemispheres and is a major navigational line.
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