This seems like a multiple choice question, do you have the choices?
The difference is that the older union tend to pursue practical things such as fair wages, number of holidays, and working hours.
The newer union on the other hand, tend to focus on something that related to social justice, such as fair treatment between each races, same opportunity to rise the ladder, etc.
Main:The human body readily responds to changing environmental stresses in a variety of biological and cultural ways. We can acclimatize to a wide range of temperature and humidity. When traveling to high altitudes, our bodies adjust so that our cells still receive sufficient oxygen.
Side:
How do human adapt themselves to the environment?
Humans gave up razor-sharp claws, fangs, sense and instincts in favor of intelligence. This brain-power has enabled humans to make the ultimate adaptation; that of making the environment adapt to us. We have domesticated crops and livestock, we irrigate, we wear clothes, build shelters, air-condition or heat our homes.
What adaptations do humans have?
5 remarkable adaptations that allowed humans to conquer the world
Endurance running. TheHellRace/Wikimedia (CC BY-SA 4.0) ...
Sweating. Jonathan Daniel/Getty Images. ...
Walking upright. John Markos O'Neill/Wikimedia (CC BY-SA 2.0) ...
Hearing tuned for speech. Shutterstock. ...
Great teeth.
Why do you adapt to your environment?
Living organisms are adapted to their environment. This means that the way they look, the way they behave, how they are built, or their way of life makes them suited to survive and reproduce in their habitats. ... Behavior is also an important adaptation.
The correct answer is Slavic peoples, Turkic Muslims, Non-Slavic
Europeans, and German migrants. The Slavic people were all people like
Russians, Ukrainians, Belarus people, and similar things. Turkic Muslims
were in the form of Chechens or other types of minorities. Non-Slavic
Europeans came in the form of Finnish people since Finland was a part of
the Russian Empire. German migrants were mostly people who came from
countries such as Prussia or other German parts of Europe.