Answer:
territory at or near a border
Explanation:
A vague intermediate state or region the borderland between fantasy and reality
Answer: Secondary historical sources.
Explanation:
Two types of sources, primary and secondary, have generally been represented in history. The primary sources are artefacts, documents, records, and other raw, source material, and they serve primarily as a source of information for the historian.
Secondary sources include quotes, comments and the like. For many historians, secondary sources create problems, they may be useful, but they need to be correctly interpreted. Because of their form, they are subject to change (because the quotation can be distorted over time and get another meaning), so they should be carefully handled. Therefore, they are distrustful of context and unreliable for proof.
Answer: d) Internal migration.
Explanation:
Mexico City had been the ultimate goal for Mexican internal migration, mainly because of the economic opportunities and the developed infrastructure in education, culture, and health. The 1960s saw the greatest increase in the city´s population in its entire history, still, mostly because of in-migration. Nevertheless, the city’s immigration eventually decreased, getting a negative net migration between 1985 and 1990.