Astronomers estimate that 50 billion to one trillion galaxies exist within our universe.

True or false

The main economic activity of Egyptian, Harappan, and Sumerian civilizations was

Plato and Aristotle had strong beliefs against

Which of these is a reason colonists settled in the area that would eventually become the United States?

What were England's main motives for exploring and colonizing America? A. creating wealth and building model societies B. defeating French military and trading outposts C. learning about new types of animals and plants D.

Since 2000, america and other nations have worked to improve which of the following environmental concerns? a. the ozone and endangered species c. ozone b. global warming and the ozone d. global warming

Who did Adolf Hitler blame Germanys defeat in ww1 on?

Which of the following is the term for the native-born Spaniards or Portuguese? creoles peninsulares mulattos

The oil embargo of ___ forced the US, to ration gasoline for a time,

One of the people of ancient Rome who, before the third century b. c., had exclusive rights to the Senate and the Magistracies. plebeian patrician none of the above

Specialization is important in an economy because it leads to which important economic concept? voluntary exchange price ceilings government regulation allocation of resources