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Under the Onís-Adams Treaty of 1819 (also called the Transcontinental Treaty and ratified in 1821) the United States and Spain defined the western limits of the Louisiana Purchase and Spain surrendered its claims to the Pacific Northwest. In return, the United States recognized Spanish sovereignty over Texas.
The Treaty of Paris marked the end of the Revolutionary War. This was a peace treaty signed in Paris between Great Britain and America.
The answer is<u> "mesosystem".</u>
The mesosystem is a segment of the ecological systems theory created by Urie Bronfenbrenner in the 1970s. It recommends that children don't grow just by impact from their nearby familial condition - encompassing situations are persuasive on the improvement of the tyke also.
The mesosystem influences children specifically and are collaborations between two microsystems. Mesosystems can be enduring, (for example, their family's contribution in their neighboorhood consistently) or a one time just occasion (like a parent overseeing a school dance).