What led to increased Jewish immigration to Palestine in the 1930s? pls give a simple 3 sentence or so explanation :)

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Explanation:

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(d) rivers.

explanation:

civilizations developed around rivers because their waters provided places to hunt and fish. also, as the rivers flooded, the lands around them became fertile. this allowed them to support farming. this is especially true of the nile river, which flooded the same time each year.

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