Will give brainliest! if right!
the patterns on a cd that stores digital signals are called hills and valleys.

true

false

4 copper and gold, the california gold rush is why im pretty sure.

b. ensure mutual protection from communism.

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populist movement, in u.s. history, politically oriented coalition of agrarian reformers in the middle west and south that advocated a wide range of economic and political legislation in the late 19th century. thus in 1892 their leaders organized the populist, or people's, party, and the farmers' alliances melted away.

to find facts and details to use as evidence! : ) hope this .