Health experts recommend that to be considered active, a person accumulate the equivalent of 1½ to 2 miles of walking per day.
If you walk at a brisk pace for 30 minutes, you'll cover a distance of about 1½ to 2 miles (2.5 to 3.3 kilometers).
The national academy of science is one of the prestigious institute of the science for the students. This institute is present in United states and is a private organization.
The physical activity is important for the individual health and reduces the chance of diseases. The daily 30 minutes(1½ to 2 miles of walking per day) of the physical activity is important for all the individuals and this has been recommended by the institute of science as well.
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Answer:
Blood from the mother passes through the placenta, filtering oxygen, glucose and other nutrients to your baby via the umbilical cord. The placenta also filters out substances that could be harmful to your baby and removes carbon dioxide and waste products from your baby's blood.
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