Mexican Cession. Mexican Cession lands were captured in the Mexican–American War in 1846–48, and ceded by Mexico in the Treaty of Guadalupe Hidalgo, where Mexico agreed to the present Mexico–United States border except for the later Gadsden Purchase.
Relationship between the portion of earth being studied and the earth as a whole is known as scale.
The Commerce<span> Clause describes an enumerated power listed in the United States Constitution (Article I, Section 8, Clause 3). The clause states that the United States Congress shall have power "To </span>regulate Commerce with foreign Nations<span>, and among the several States, and with the Indian Tribes." hope this helps </span>