14) In the early 1900's, much of the farmland across the south had been depleted of vital nutrients, because cotton was planted in the same fields over and over. George Washington Carver was an important voice urging farmers to replenish their soil using a method known as , wherein other plants, like peanuts and sweet potatoes, would be planted in the cotton fields periodically. A) irrigation B) crop rotation C) fertilization D) crop harvestation

B) crop rotation

Explanation:

In the early 1900's, George Wasington Carver was a chemist who made important discoveries in the field of agricultures thereby manufacturing important tools (inventions). Part of his major works which was on agriculture contributed immensenly to the growth of farming activities by farmers and their feeding lifesyles.

To the farmers, he was able to notice that there is a significant loss of soil nutrient after farming activities leading to them adopting fallow methods to replenish it. In order to solve this issue, he suggested to the farmers to adopt the crop rotation method in the farming as a result of the benefits to gain from it.

This theory by him was as a result of the discovery that he made when a deep rooted plant is planted next to a shallow rooted plant. This is to replensih nitrogen to the soil of those farmland through systematic crop rotation.

the answer to this question is the third option. hope this

in the 1800s, chinese workers migrated to the united states, first to work in the gold mines, but also to take agricultural jobs, and factory work, especially in the garment industry. chinese immigrants were particularly instrumental in building railroads in the american west, and as chinese laborers grew successful in the united states, a number of them became entrepreneurs in their own right. as the numbers of chinese laborers increased, so did the strength of anti-chinese sentiment among other workers in the american economy. this finally resulted in legislation that aimed to limit future immigration of chinese workers to the united states, and threatened to sour diplomatic relations between the united states and china.