One factor that caused Texas to declare independence from Mexico was a. Mexican attitudes of racial superiority. b. a desire for unrestricted trade with the U. S. c. anger over the continued existence of slavery in Mexico. d. the decreasing numbers of immigrant settlers.

the decreasing numbers of immigrant settlers.

Explanation:

A convention of American Texans gathered at Washington and declared the independence of Texas from the country Mexico. The delegates who gathered at that event selected David Burnet as their provincial president and Sam Houston as the commander in chief of all Texan forces.  

The land in the area was so cheap and many American decided to settle there. The Mexican laws prohibited slavery but the Americans brought salves to Texas.  

the answer to fill in the blank in this question would be the word resource, it is defined as the money, material or people (since human resource is a very valuable good) that a company or a person has at disposition (meaning they can use the resource as they see fit), to be able to complete a task or achieve a goal.  

answer: secession

secession, as it applies to the outbreak of the american civil war, comprises the series of events that began on december 20, 1860, and extended through june 8 of the next year when eleven states in the lower and upper south severed their ties with the union. the first seven seceding states of the lower south set up a provisional government at montgomery, alabama. after hostilities began at fort sumter in charleston harbor on april 12, 1861, the border states of virginia, arkansas, tennessee, and north carolina joined the new government, which then moved its capital to richmond, virginia. the union was thus divided approximately on geographic lines. twenty-one northern and border states retained the style and title of the united states, while the eleven slave states adopted the nomenclature of the confederate states of america.

explanation: