Do most countries in Central America have a higher or lower population density than countries in South America?

What did photos by the hubble space telescope reveal about the great dark spot?

One of the main reasons societies settled along rivers in the neolithic era was because a) the village elders demanded it. b) the land there was more valuable. c) it was more safe and secure there. d) it provided irrigation for farming.

Which statements describe characteristics of mdcs? higher standard of living increased agricultural focus more access to health care more access to transportation and communication more industry reduced educational opportunities shorter life expectancy