A 15-month-old child, equivalent to a child of 1 year and 3 months of age, should have began weaning from bottle feeding from 6 months of age. Tooth decay or dental caries are commonly associated with prolonged bottle feeding as the sugars and other substances in milk; when drank from a teat from a bottle; prolongs the exposure of teeth to the milk, leading to overgrowth of bacteria causing dental caries.
You can tell if matter is conserved if the substance changes . If the substance changes then matter has been conserved .
•The type of fruit or stuff that grows on it like pine cones.
•the color of the leaves (before fall and winter).
•The type of bark on the tree.
