Question

born a slave, george washington carver was a great american scientist who became famous for his work in agriculture. carver’s goal was to improve the economy of the south by developing better farming methods. although he is widely known for his work with peanuts, he also researched ways to conserve soil and improve crop production. southern farmers had been wearing out the soil by planting the same crops in the same fields year after year. carver showed them how to use crop rotation to improve the yield of their crops. he demonstrated to the farmers how changing the crops in a field helps to enrich the soil. he took a piece of nonproductive land and planted peas, yielding a richer soil. then he planted sweet potatoes, and the soil improved even more. finally, he planted cotton. 7. based on what you know from the story, how does crop rotation work? a farmers plant only cotton, because it keeps the soil moist and healthy. b farmers always plant the same crops in the same fields. c farmers plant different crops in a field over a period of time.

Explanation:

Crop rotation involves changing the crops planted in a field over time to improve soil quality and crop yield. Option C describes this concept accurately. Option A is incorrect as it promotes monoculture which is the opposite of crop - rotation. Option B describes the practice that crop - rotation aims to change.

Answer:

C. Farmers plant different crops in a field over a period of time.