What word describes what people do when they spread out and live in almost every land area of the world

What was the social class pyramid during the civil war?

Rank the following from most to least devasting: ordovician, permaian, cretaceous, pleistocene

In a small, closed economy, national income (gdp) is $350 million for the current year. individuals have spent $100 million on the consumption of goods and services. they have paid a total of $60 million in taxes and the government has spent $75 million on goods and services this year. use this information and the national income identity to answer the questions. how much does the economy spend on investment?