Final answer:
Farmers in South America may experience abundant crops during El Niño because the weather pattern often brings increased rainfall to regions that are usually dry or have minimal precipitation, which improves conditions for crop growth.
Step-by-step explanation:
The question asks why farmers in South America get abundant crops during El Niño events. El Niño is characterized by a band of warm ocean water that develops in the central and east-central equatorial Pacific, which affects weather patterns across the globe. During El Niño years, the typical weather conditions are altered, leading to increased rainfall in certain regions of South America that are typically arid or receive less precipitation. This additional rainfall can lead to improved soil moisture levels, which is beneficial for crop growth and can result in abundant crops. However, El Niño can also cause extreme weather conditions such as flooding, which on the flip side, can have detrimental effects on agriculture. Overall, the abundant crops during El Niño in South America are due to favorable weather conditions that stimulate agricultural production.