The researcher who identified 10 basic emotions, most present in infancy, was <span>Carroll Izard.
</span> He defined the following 10 basic emotions: joy, interest- excitement, surprise, sadness, anger, disgust, contempt, fear, shame, and guilt, while the two categories are <span>arousal (high vs.low) and valence (pleasant, or positive, versus unpleasant, or negative).</span>
D. Marco Polo
Explanation: All of the others where conquistadors from europe who were enlisted by royal families
Lighting hitting water. I can give an explanation if needed
All were found in Mesoamerica
