Because of shortage of fruits and hunt,they need move place to place
Answer:
Government subsidies for federal elections, originally proposed by President Roosevelt in 1907, began to take shape as part of the 1971 law, as Congress established the income tax checkoff to provide for the financing of Presidential general election campaigns and national party conventions.
Explanation:
The first farming settlements in China developed "along the rivers," since the rivers provided crucial irrigation for crops, which allowed for richer, more plentiful harvests.