8. Economists assume that everyone acts in their own self-interest. Explain the difference between self-interest and
selfishness. Helppp!!

self interest is based on what you believe is good to do, while selfishness is only caring about personal gain

Explanation:

your answer will be b. improving roads, bridges, and other infrastructure. hope i !

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.