Answer:
5 billion .........m.......m
Object permanence is the developmental milestone that must be reached before an infant experiences separation anxiety. It is used to describe the ability of a child to know that objects continue to exist despite the fact that they can no longer be perceived that is , seen or heard, touched, smelled, or sensed in any way. This milestone is developed through touching and handling objects by the infants.
Answer: the correct answer is A) All plants should be the same age and health and be given equal amounts of water and sunlight.