Answer:
This is a cycle because it continues forever. Cycles like for example, a human. A human starts off as a baby, becomes a toddler., then ages into a kid then a teenager, afterwards an adult. And this cycle continues. It happens everywhere in nature and everywhere in the world today with living things including: Plants, Humans, and animals. I hope this helps It might be wrong and I'm sorry if it is:(
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
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is ur awnser ...................................
I will repost your question