This means that there are steps or stages throughout one's life in which the mind and personality undergo changes. For example, one may take a step as a child going from rarely having their own thoughts and feeling to creating their own opinion. This would be a step that the person is taking.
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All of those ARE reasons why communicable diseases kill fewer people today except for B. Your answer is B.
Eating well, exercise, sleep, drinking water, avoiding harmful habits , don’t get sick constantly
More than 480,000 , and more than 41,000 deaths due to secondhand smoke exposure
