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The correct answer is  B.)!

Explanation:

Western Washington is wetter/a mild maritime climate where most of the state's population lives and is considerably liberal/progressive politically, while Eastern Washington is mostly high country desert that's not heavily populated, that's hot in the summer and cold in the winter and that's fairly conservative

2018 means 2018 ce or common era

there have been other eras too including bce, which included way more years.

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.