Tropical cyclones primarily generate very heavy rainfall , which can lead to significant flooding. This heavy rainfall results in various secondary effects, including agricultural soil erosion and injuries. While they can also cause tidal floods, the immediate impact of these storms is the intense precipitation they bring. ;
Tropical cyclones primarily generate very heavy rainfall, leading to severe flooding and other related impacts. While they can cause injuries and soil erosion, the most significant immediate effect is the intense precipitation. Therefore, the best answer to the question is option C: very heavy rainfall.
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