Fluency. Because if the mother is the one closer to the child and speaks more often to the child. Also she may sing lullabies to the baby in their local dilect
Answer:reciprocity
Explanation: Reciprocity is a norm amongst people which is due to the act of kindness committed by one person to us ,that result to us feeling encouraged and motivated to commit the act of kindness back to those people , it is a norm of sharing out of the kindness of our heart because people have also been kind to us.
The movement of materials away from place is called erosion.
