<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>
Answer:
it's Letter B Duty that the answer
a connection between two landmasses, especially a prehistoric one that allowed humans and animals to colonize new territory before being cut off by the sea.
They were very diverse, had religous toleracy, had fertile soil, and warm weather.
