20
Why: 39 (mass number of K) - 19 (atomic number or number of protons) = 20 (number of neutrons)
Answer:
B. Industrialization and urbanization
Explanation:
The nineteenth century is the period of time when the industrial revolution had taken a hold of society completely. Never in the history of the human civilization had there been such cooperation that significantly caused the progress of our species.
Industrialization caused a large number of people to settle in cities. Urbanization caused a large mass of people to live together. The dynamics of human interaction had changed.
In order to understand how social interactions were affected people started studying human behavior in the nineteenth century.
Answer: i dont know the amswer
Explanation:
D seems like the most efficient answer
<span>If I was to travel on a military campaign like Alexander the
Great during that period, I would carry the book Anabasis by Xenophon. Though the book was unsubstantiated, it can
be a source of study as well as inspiration while going on an extensive
campaign. It details the adventures and
trials that 10,000 Greek mercenaries experienced during their campaign in
Babylon to their journey to the Black Sea.
For those who go on military campaigns, it inspires those to keep on
going no matter how hard the journey gets.</span>