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The geography of Texas is diverse and large. Occupying about 7% of the total water and land area of the U.S., [1] it is the second largest state after Alaska, and is the southernmost part of the Great Plains, which end in the south against the folded Sierra Madre Oriental of Mexico.
A bathtub faucet with built-up calcification from hard water in Southern Arizona. Hard water is water that has a high mineral content (in contrast with "soft water"). Hard water is formed when water percolates through deposits of limestone, chalk or gypsum, [1] which are largely made up of calcium and magnesium carbonates, bicarbonates and sulfates.
As of 2016, most area of Texas had already warmed by 1.5 °F (0.83 °C) since the previous century because of greenhouse gas emissions by the United States and other countries. [32] Texas is expected to experience a wide range of environmental impacts from climate change in the United States , including rising sea levels , more frequent extreme ...
West Texas is often subdivided according to distinct physiographic features. The portion of West Texas that lies west of the Pecos River is often called "Far West Texas" or the "Trans-Pecos", a term introduced in 1887 by geologist Robert T. Hill. [4] The Trans-Pecos lies within the Chihuahuan Desert and is the aridest part of the state.
Following is a list of dams and reservoirs in Texas. All major dams are linked below. The National Inventory of Dams defines any "major dam" as being 50 feet (15 m) tall with a storage capacity of at least 5,000 acre-feet (6,200,000 m 3 ), or of any height with a storage capacity of 25,000 acre-feet (31,000,000 m 3 ).
In Texas, there are 98 of these districts, covering nearly 70% of the state, according to the Texas Water Development Board. The Upper Trinity Groundwater Conservation District has the following ...
The Texas Hill Country is a geographic region of Central and South Texas, forming the southeast part of the Edwards Plateau. Given its location, climate, terrain, and vegetation, the Hill Country can be considered the border between the American South and Southwest . [ 1 ]
The following is a complete list of 25 metropolitan areas in Texas, as defined by the United States Office of Management and Budget. The largest two are ranked among the top 10 metropolitan areas in the U.S. Some metropolitan areas contain metropolitan divisions. Two metropolitan divisions exist within the Dallas–Fort Worth–Arlington MSA.