Labor unions were set up in order to promote: A. Better-working conditions; F. Demand for higher wages; and D. Eight-hour workdays. Hope that assists you.
In the 1800s they used steel plows and other new forms of technology. The Steel Plow was used for farming to break up tough soil without soil getting stuck to it.
By the outbreak of mass communicationts throughout usa
It got much bigger and the air quality got better.
I think it's important because scientists need to be able to communicate.
Think about why you write a lab report. When we write lab reports, we are effectively communicating how we did our experiment, our results, and what we think about those results.
We need to have transparency and be able to replicate results in order to know if they are accurate to our hypothesis. Theories are not 100% proven. We only know what we are able to observe and all measurements have their limitations.