Multiple Choice
Native Americans developed an agricultural method using the Three Sisterscorn, squash, and beanswhich became the core of their diet. The beans increased the level of nitrogen in the soil. The corn requires high levels of nitrogen and provides a support for the beans to climb and receive more light. The large leaves on the squash shade the ground and limit weed growth. This agricultural method:
A) increases the number of pests in the fields.
B) creates wildlife corridors.
C) is a type of sustainable agriculture.
D) causes mass extinctions.
E) reduces the ecosystem services.
Correct Answer:
Verified
Correct Answer:
Verified
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