Answer:
Green revolution, great increase in production of food grains (especially wheat and rice) that resulted in large part from the introduction into developing countries of new, high-yielding varieties, beginning in the mid-20th century. Its early dramatic successes were in Mexico and the Indian subcontinent. The new varieties require large amounts of chemical fertilizers and pesticides to produce their high yields, raising concerns about cost and potentially harmful environmental effects. Poor farmers, unable to afford the fertilizers and pesticides, have often reaped even lower yields with these grains than with the older strains, which were better adapted to local conditions and had some resistance to pests and diseases. See also Norman Borlaug
Answer:
It was mainly due to the lack of knowledge on the type of attack that was launched against them. But also the advanced weaponry including the long swords that were used that were as strong and sharp as possible.
Explanation:
This was due to the dedication the Spanish had to specialisation of different aspects like weaponry and the confusion that the Incas felt during this as a result of the surprise attack that was launched by the Spanish conquistadors.
