Where were most telegraph lines built during the antebellum era? along waterways
along rail lines
along subway lines
along roadways

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.

declare war, appoint military officers, sign treaties, make alliances

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