How did the State of Texas rise above the sea millions of years ago?

Answer 1

Different parts of Texas have been covered by shallow seas at different times in its history--and the causes have been (1) plate tectonics (as in--where the edge of the continent was at a particular time) and (2) general sea level rise and fall.
The last time a big chunk of Texas was under water was during the Cretaceous and a while thereafter. Sea level was high, and water from the Gulf of Mexico formed a shallow seaway that stretched all the way up through the Central U.S. to Canada during the Mid-Cretaceous. This seaway is called either the Cretaceous Seaway or the Western Interior Seaway. Check out map here: http://www.scotese.com/cretaceo.htm at the website created by Chris Scotese. Wikipedia has a very nice discussion of the seaway. http://en.wikipedia.org/wiki/Western_Interior_Seaway
Falling sealevels and a mountain building event called the Laramide orogeny (in western North America, related to plate convergence between North America tectonic plate and oceanic plate to the west) both contributed to the retreat of the seaway.

During Middle Eocene time (50.2 million years ago, the seaway had largely receded and most of Texas was land: http://www.scotese.com/newpage9.htm

Answer 2

The world isn't millions of years old, so Texas couldn't have risen up then. The earth is no more then 7000 years old. God created the earth and everything in it 7000 years ago. During the flood in Noah's time, about 6500 years ago,all of the continents were made and that's when texas, and the whole U.S., would have risen above sea level.

Answer 3

Texas, like most of the country, rose up on the tectonic plate (giant rock plate the continents float on over the molten rock mantle). So far this is only a scientific theory, but it is the most largely accepted theory.

Answer 4

Did it rise? Or did the sea levels fall? It was much warmer back then