Where did many Mexican immigrants work?

In the fields, which they worked for a place to stay and a small part of the crop to feed themselves. These conditions were bad.

Explanation:

from the conditions of the working class in england by friedrich engels,the main idea is :

map scale refers to the relationship (or ratio) between distance on a map and the corresponding distance on the ground. for example, on a 1: 100000 scale map, 1cm on the map equals 1km on the ground.