What issue caused long term conflict between colonists settling in texas and government of texas?
a) tax laws
b) water rights
c) border disputes
d) legality of slavery

C) border disputes

Explanation:

It even culminated in the Mexican War of Independence that ended Spain's control over its North American colonies, and the new country, Mexico, was born occupying much of the territory that comprised New Spain.  On October 4, 1824, Mexico approved a new constitution that defined the country as a federal republic with nineteen states and four territories. The former province of Spanish Texas became part of a newly created Mexican state, Coahuila y Tejas, whose capital was Saltillo, hundreds of miles from the Texas capital, San Antonio de Béxar (now San Antonio).

Nowadays, Texas has the third largest economy in the United States; Only the states of California and New York have a higher GDP. The state's economy is quite diverse, especially the oil and aerospace industries, something quite different from what was seen in the early twentieth century, where agricultural activity was predominant.

- "the most famous structure by far at saqqara is djoser's step pyramid. dating from the 3rd dynasty (2667—2448 bc), it was the first all-stone complex ever built on earth."

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the answer to your question is:

strong-mayor system