Why can food coloring give you cancer?

Which of the following statements regarding emotion and altruism is true

Interactional synchrony is like an "emotional dance" between caregiver and child, wherein they send important signals and share emotions. what does this process form for the child? a. a physical foundation for trust b. a basis of the drive for independence c. positive experiences that stabilize brain connections d. a basis for attachment

The outermost layer of your teeth is called the enamel and is made of?