The correct answer is nº4.
A thesis statement is used to summarize in 2-3 lines the main argument that will be developed along a much longer piece of text that usually comes right after. In this case, in nº 4 describes very broadly the most important characteristics of the Industrial Revolution (IR) period, including both some causes and consequences of this process. The new technologies that were implemented to enhance the productivity of the manufacturing activities led to new production systems, that required different type of employees and a big number of them. Industrial workers lived in cities so there was an important shift of population from rural to urban areas, that could offer more job positions than the agricultural industry in the countryside. All this meant a great change in society and in the way of life of the majority of the population in industrialized regions.
The other sentences in this introduction paragraph only mention specific aspects of the IR process. In turn, number 4 provides a relation of the main aspects that have to be commented for sure if speaking about industrialization.
Economic push factors of immigration include poverty, overpopulation, and lack of jobs. These conditions were widespread in Europe during the 1800's.
<span>They undermined economic growth, Hope this helps!! :)</span>
I don't think dropping the atomic bomb on Hiroshima and Nagasaki was either necessary or acceptable. Japan was already weakened by the war and it was obvious that it wouldn't be able to fight much more. That's why America had other options to choose from in order to end the war other than the atomic bomb. However, I don't think their dropping the atomic bomb had much to do with Japan - it was just a demonstration of the US power and a threat to other countries in the world not to mess with it - Japan just happened to be the guinea pig. The atomic bomb led to the deaths of more than 200,000 people in Japan, and to dire consequences in Hiroshima and Nagasaki which can be still felt today, over 70 years since the bombing happened.