The cotton gin was important because it: (choose all that apply) removed the seeds from the cotton faster than by hand.
removed the seeds from the cotton faster than by hand.

was the first electrically powered machine.
was the first electrically powered machine.

allowed cotton to be produced more efficiently and profitably.
allowed cotton to be produced more efficiently and profitably.

picked the cotton from the ground at a much faster rate.

the cotton gin removed seeds from the cotton fatser than by hand

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.