Exports of tin and silver were the mainstays of the economy for many decades. however, today, as the market for tin has declined, the country has become an exporter of other metallic ores, such as gold. a. colombian b. bolivian c. peruvian d. ecuadorian its b. bolivian
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Which are evidence of the seafloor spreading? a. molten material b. magnetic stripes c. continental material d. drilled core samples e. ocean water samples
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Exports of tin and silver were the mainstays of the economy for many decades. however, today, as th...
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