True, the Travis letter had an immense and immediate effect.
Cow towns: a town or city in a cattle-raising area of western North America.
The correct answer is conservation of number
According to Piaget's theory, when the child has no notion of conservation, that is, when he does not believe that there may be different configurations for the same object, he is going through the preoperative period or early childhood, which occurs from 2 (two) at 7 (seven) years.
Answer:
the answer is A. Withholding information about a cure to an illness to test how the illness progresses in humans
Explanation: