A biological community of interacting organisms and their envious
Answer:
it is The Andes, The Andes are the main physical feature of Pacific South America.
Explanation:
The Andes Mountains run through all of the pacific south American country's, with some peaks above 20,000 ft. In the south, the mountains are rugged and covered by ice caps, In the North, they are rounded, and the range splits into two ranges . A high plateau called the altiplano, lies between the two ranges.
One piece of evidence to support the theory that south America and Africa were once connected; Continental Drift.
GDP, which we use right now, to see how many people have jobs, at what income, to decide how good the economy is. We could possibly use population density, as poorer countries/less developed countries tend to be more dense all around. Mainly economic things though, so GDP, income per capita. We use life expectancy, rate of literacy, freedom index..hope this helps
