Answer:
The Green Revolution
Step-by-step explanation:
During the 1950s and 1960s, the world population dramatically rose and there was a big demand placed on the world food security. Many countries with a low level of development and less than ideal climates were suffering from food shortages. High yield variety crops were created to allow staple dietary food such as rice to be harvested more times each year and for them to be more resistant against temperature change and disease. These new strain of crops also required more fertilizer so artificial alternatives had to replace the old traditional methods. The new crops also demanded new irrigation techniques to get the water to the fast-growing crops.