Iwo jima was important to the allies because

Major Victory against Japan

Explanation:

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i think a judge or jury, as they preside over the court and is the central figure in a trial.

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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.