The right of the united states’ national government to establish post offices, regulate commerce with foreign nations, and declare war, all on behalf of the constituent states, are referred to as which of the selections listed below? select one: a. enumerated powers b. powers of attorney c. reserved powers d. concurrent powers

answer; i believe the above statement is (true);

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.