Because babies learn so much through their mouths, it is crucial to keep a baby's environment clean and safe to keep babies from getting a cold so babies don't fall down the stairs so babies feel comfortable in their home environment so babies can explore without fear of choking or eating something harmful

1. b vitamins2. vitamin k3. vitamin d4. examples are walnuts, seeds, tofu5.  total fat, saturated fat, trans fat, cholesterol, sodium, total carbohydrate, dietary fiber, sugars, protein, vitamin a, vitamin c, calcium, and iron.6. 11257. they have to contain reliable information8. less than 10%  9. i didnt read the course so im not surehope that : p