Which helped prevent a war between the United States and Spain?
the 1846 Treaty of Oregon
the Adams-Onís Treaty
the slogan “Fifty-Four Forty or Fight!”
the annexation of Texas

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the causes of the dust bowls were severe droughts,   lands became dry and hard, temperature was higher than usual, hot and dry conditions killed crops, high winds. because of those factors, the winds kicked up dry soil and created clouds of dust.

the corporations allowed investment without risk of personal property, fueling the growth of new businesses.