Final answer:
Living in the Southeast highlands compared to the lowlands leads to differences in precipitation, oxygen levels, and cultural characteristics.
Step-by-step explanation:
People who live in the Southeast highlands compared to those who live in lowlands experience several differences. The highlands typically receive more precipitation due to the rain shadow effect, which occurs when a mountain range blocks the movement of precipitation-bearing clouds. This leads to a more arid climate in the lowlands. Additionally, living at higher altitudes in the highlands, such as the Ethiopian highlands, can pose challenges due to low oxygen levels, prompting adaptations in indigenous populations. The Upland South region in the United States also exhibits different cultural characteristics compared to the Lowland South, as poor farming conditions discouraged plantation agriculture and slavery.