According to the source, the answer to this question is conscientiousness.
Meaning that as people grow up they become more careful and perceive risks in their actions.
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Answer:
Natives people of America had no immunity to diseases that European explorers and colonists brought with them. Diseases such as small pox, influenza, measles, and even Chicken pox proved deadly to the American Indians. Europeans were used to these diseases, Indian people had no resistance to them.
Explanation:
to ensure the monopoly of spice trades and to take advantage of their rivalries that pitted Hindus against muslims
