The transition from slave-raiding to the encomienda system is one example of how europeans a. created new and advanced systems that elevated the economic status of native peoples in the americas
b. denounced and refused to participate in the subjugation of native peoples in the Americas
c. Adapted their principles to new and unfamiliar surroundings and situations
d. established and maintained separate and isolated colonies in the Americas

crop rotation kepy different plants in the soil instead of once constintly. when switching out plants you have different nutrients being absorbed at different speeds and different roots growing differently therfore the spoil and water flow have to adapt and carry fresh nutrients to carry the constant changes that were going on in the soil.

yes based on alexanders actions he deserved the title of "the great". his empire covered about 3,000 miles and he was able to establish the empire over a 13 year period of time. he was able to conquer many different places. he also defeated the persians. he conquered egypt and developed a city and named it after himself.