The use of irrigation on the plains of the Texas panhandle throughout the twentieth century facilitated ranching and farming in the region, yet that has also resulted in-

Economic improvements for the state.

Explanation:

As you may already know, texas is a strong producer of agricultural products, due to its high fertility rate. In the 20th century, the use of irrigation in the Texas mangrove plains combined with extremely favorable environmental conditions for agriculture and livestock, Texas increased its production of agricultural products which boosted local trade in a very strong way, bringing improvements to the economic situation of the state and increasing the quality of life of the Texans.

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