Answer:
The boarder between the USA and Mexico what moved South.
Explanation:
Mexico lost the Mexican-American War from 1846 to 1848. In doing so it lost about one-third of its land to the USA. Texas was taken and the boarder was changed to the Rio Grande. Mexico also ceded modern-day California, Nevada, Arizona, Utah and New Mexico. Some regions of Colorado and Wyoming were also included in this.
Answer:
Quartz is not pure in this rock.
Explanation:
When quartz shows effervescence in contact with an acid, it means that it is not in its pure state, but rather related to other substances that may be cementing the quartz. This effectiveness is caused by substances that do not react like quartz, such as calcite.
In this case, we can conclude that in relation to the calcium-rich rock shown in the question above, the calcium is not pure, but it is likely to be related to calcite, or other material that does not react to acid.
Answer:
Population density is a measurement of population per unit area, or exceptionally unit volume; it is a quantity of type number density. It is frequently applied to living organisms, most of the time to humans. It is a key geographical term.
Explanation:
I think how long and how often.
