I’m not sure what your referring to this question as but over time our society advances or makes new cities and we have to cut down trees and plants in order to make these cities. Trees produce oxygen which we need to breathe and if we keep cutting them down then our oxygen supply is going to decrease. Needless to say the more humans evolve the more our environment evolves.
D is the correct answer.
The major job of political parties is to put forth platforms with sets of ideas and to find candidates that work to follow those platforms.
Absolutely horrendous. There were no Child labor laws, meaning that children would face practical slave labor and unsafe conditions while working in factories. The machines in these factories were anything but safe, and it was not uncommon for someone to lose a finger, and/or die due to an affect of the machine. There were almost no laws in place at this time to change this.