Thank you for posting your question here at brainly. Among the chocies provided above, the quechua still present in modern-day south america because it <span>was imposed on every tribe conquered by the Incas. I hope the answer will help you. </span>
The great increase in production of food grains (such as riceand wheat) due to the introduction of heigh- yielding varieties,to the use of pesticides,and to better management's techniques