Complex sentence: Their main activity was planting maize, beans, yuca, arracacha, cotton, Agave, tobacco, tomato, pineapple, guava, among others; their agricultural skills were sufficiently developed to take advantage of the different mountainous terrains.
Split into simpler sentences: Their main activity was planting maize, beans, yuca, arracacha, cotton, Agave, tobacco, tomato, pineapple, guava, among others. Their agricultural skills were sufficiently developed to take advantage of the different mountainous terrains.