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The normal force is always vertical.
Infant Mortality Rates
A statistical measure that represents the number of deaths of infants under one year old per 1,000 live births in a given year.
One Year
A period consisting of 12 consecutive months.
Fewer Than
A comparative term indicating a smaller quantity or number of items, objects, or people.
Morbidity Rates
Indicate the number of people who suffer from particular illnesses per 100000 members of a population.
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