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.
Answer: the four terrestrial planets must once have been hot enough to be molten (like a liquid)
Explanation: Terrestrial planets can be defined as any planet of the solar system or any exoplanet which is "Earth-like" in the sense that it is composed primarily of metals and rock, in contrast to a planet which is a gas giant.
Within the Solar System, the terrestrial planets are the inner planets closest to the Sun, i.e. Mercury, Venus, Earth, and Mars.
Scientist believing that the densest, heaviest materials are at the center and not evenly distributed can be due to the fact that they must once have been hot enough to be molten. In this case, density will take place, making the heavier under and the lighter on top.
It depends what book you are talking about or how your perspective of the character is. In my opinion I would be friends with the main character because they have a brave spirit and seem to be outgoing and fun yet loyal.
The right answer is D, Conflict Theory, This theory is part of the modern sociology and explains when a conflict transcends the individual and reaches a position or social level. Social conflicts are usually due to the scope of power, status or resources that the society they want to neutralize possesses.
I hope my answer can help you.