If only nine of the thirteen states were needed to pass the new government, why was it important that all states support the constitution?

It was important in the sense that the states which did not support the constitution were likely to succeed from the union.

It was important for all of the states to support  the Constitution because of national unity. The earlier debates over the Articles of Confederation meant the new nation needed a consensus about its constitutional structure. An affirmative and all inclusive vote signaled consensus and agreement in the new Republic.

the dust bowl, otherwise known as the dirty thirties, was a huge dust storm that killed multiple (and i mean  multiple) farmer's crops, leaving them homeless, and foodless, and jobless. in california, there were 5.7 million residents, and the population shrank as mexicans were repatriated. however, when the dustbowl happened, a lot of people began to move to california. by 1940, 250,000 people had arrived. therefore, your answer would be  the population increased, massively.  i hope this !

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