Answer:
HDI-human development index
the colum below shows schooling years(education part of HDI)-shows how "intelligent" a country is which indirectly relates to how much income is earned.
A very large range of countries are shown and as the poorer the country gets so does the level and amount of education
Explanation:
HDI is is a statistic composite index of life expectancy, education, and per capita income indicators, which are used to rank countries into four tiers of human development.
The farmers in the area are mostly subsistence farmers, as the region is very hot, and arid,making agriculture unviable. as a result there is famine and drought in the area, as well as nutritional issues.
The answer is c. reverse its polarity.
