By using lands to farm millet, wheat soy beans cucumbers bok choy. The Chinese would use the rivers that run through the plaines to fish, feeder cattle and travel up and down the rivers and boats
(ANSWER IS D) The lower limbic structures like the amygdala can process the sensory input from the snake and trigger a physical reaction to the feared stimulus before the input is processed at a more rational level by the cortex.
Some came to escape religious persecution, while others came to acquire land.