D) the lines are parallel and measure the distance North and south of the equator.
The cause of the increasingly tense relations between the mexican government and the american residents in texas after 1830 was mainly the increasing american immigration, that brought with it many cultural and social conflicts, since the Mexican natives became the minority in Texas, reaching only 7800 against the 30,000 English-speaking inhabitants, bringing as a consequence a conflict for the independence of Texas and then the annexation to the United States of America.
It was difficult for Congress to fulfill its duties under the Articles of Confederation because Congress lacked the power to regulate foreign trade, and most congressional decisions required the approval of at least nine states.
The Declaration of Independence was signed on July 4, 1776. The document declared independence for the American colonies from England, their former tyrannical ruler- and now Independence Day is national holiday celebrated every July 4th.
