Answer:jacks head is hurt, probably a concussion, and jill is also hurt
Explanation:
Answer: B. Authorized Congress to implement a graduate income tax
Explanation: The Sixteenth Amendment (Amendment XVI) to the United States Constitution allows Congress to impose an income tax from any source without alotting it among the states on the basis of population.
I think what is meant here is the fact that the borders of African countries are unusually straight and do not follow natural landscapes (see the borders between Namibia and Botswana) - this is a legacy of how the land was shared by the colonial powers.
The appropriate response is the sensorimotor stage, it is the first of the four phases Piaget uses to characterize intellectual improvement. Piaget assigned the initial two years of newborn children life as the sensorimotor stage. Amid this period, babies are occupied with finding connections between their bodies and the earth.