It was primarily "(4) decreasing population in cities of the South," that led to agricultural overproduction <span>and falling farm prices during the 1920s, since many people were moving north in order to find better job opportunities. </span>
The Magma Cart was written first
<span> Rift Valley was formed by violent
subterranean forces that tore apart the earth's crust. These forces
caused huge chunks of the crust to sink between parallel fault lines and
force up molten rock in volcanic eruptions.</span>