Sit who with who next to each other and what do they have in common?

sam houston basically made tx he fought for anrew lead troops in the battle of san jacinto and then became president and james polk

i guess so you did not explain the answer clearly so i can't

the answer is a. the harappan civilisation is also called the indus valley civilisation, this is because they built their cities along the indus river. the reason behind this location can be found in the rest of the "old world" civilisations like mesopotamia or egypt, the first built their cities along the rivers tigris and euphrates, the second along the nil; : their respective civilisations thrived because the overflowing of their respective rivers produced favorable conditions for agriculture, their main support.