One example of a push factor and a pull factor

Which answer best explains the overall impact of the chicken on native american populations in the new world? negative; it destroyed much needed grain crops neutral; it was not well adopted by native americans insignificant; other animals were more quickly accepted positive; it brought a good source of protein to the native american diet

The ancient greek city-state of sparta was run as an oilgarchy, meaning

What was true about sharecropping? a. landowner provided free tools and seeds.b. workers could leave the land if they failed to make money.c. landowners often took advantage of workers.d. workers received ownership of the land they farmed after a set number of years.