Which of the following contributed most to early people’s ability to produce food?
a.
hunting of wild herds
c.
the ability to make fire
b.
the end of the ice age
d.
metal tools

The End of the Ice Age

Explanation:

Jusst took the test

while it was true that the cotton gin reduced the labor of removing seeds, it did not reduce the need for slaves to grow and pick the cotton.

explanation:

before eli whitney's invention of the cotton gin, picking and cleaning cotton was a slow, labor-intensive job. workers, usually slaves, had to pick the seeds from the cotton fibers by hand. this invention made it possible to grow large amounts of cotton on big farms and make money.