the difference in soil quality between the United States and Korea

(1)The U.S. is the world’s first country
(2)Among them, “If you sow seeds, grain grows even if you do nothing”
(3)According to the U.S. Department of Agriculture’s Global Soil Survey
(4)It’s a country with the most fertile land LINES
(5)Half of the Grade 1 land is in the United States
(6)For your information, Jeolla-do is the best in our land
(7)It’s grade 5
(8)You have to pour in fertilizer
(9)It’s a level that you can expect a harvest
(10)The rest of the land belongs to a mountainous area of grade 67
(11)I can guess how hard our ancestors’ lives must have been