Answer:
Because Mexico–U.S. migration represents the largest sustained migratory flow between two nations worldwide, much of the theoretical and empirical work on migration in the Americas has focused on this single case. Yet in the past few decades, migration has emerged as a critical issue across all nations in Latin America and the Caribbean. Indeed, over the past fifteen years, this region has changed its historical position from a net migrant-receiving region to one of the leading sending areas of the world.
Answer:
a mountain is made by movement and volcanoes are formed by wind. (more info below)
Explanation:
fold and fault mountains are formed by various geological processes, such as the movement and opposition of tectonic plates, but a volcano is formed around a wind that allows magma to reach the surface of the earth. It's just about plate tectonics.
hope this helped!
Answer:
Choosing to move in order to work at a better job.
Explanation:
Answer:
the positive and negative effects that occur when people interact with their environment.
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.
