Social studies question: me .

B

Explanation:

Early civilizations were foind by major river valleys.

~kinetic ~potential

explanation:

kinetic and potential energies would be types of mechanical energies.

american political culture includes a plenty of focus views and preferences. not all westerns experience the same opinions, of course, but the large preponderance promises to these general ideas, including equality, justice, freedom, individualism, integrity, and difference.

the united states is a democratic republic. residents elect representatives to governmental, nation, and local administration; those deputies create the regulations that command u.s. community. although emptiness in u.s. law needs it, in usage, the administrative system is ruled by executive factions.