The leading causes of the expansion of the Texas Frontier included all EXCEPT? A) large amount of land

B) Native Americans allowed it

C) demand for beef in the northern and eastern U. S.

D) large supply of wild longhorn​

Where did the domestication of crops and animals begin?

The segments shown below could form a triangle.

How was rockefeller able to build his monopoly across the oil industry? he found newer and cheaper ways to refine oil, increasing his profits. he confined his business to ohio so he could buy all the refineries there. he bought up oil refineries, cut costs, and reinvested his profits in other refineries. he began to sell kerosene as well as oil, expanding his market.