The principles of mass production were applied in many industries is not an effect of industrialization and mechanization.
Answer: Option D
Explanation:
Industrialization was the time period when there was use of machines, and technology that was used for the production of various goods. It was also a time period which saw the transformation of the economy from the agricultural sector to the industrial sector.
Industrialization and mechanization led to many employment opportunities for people and people from the villages came to cities for working in these industries leading to industrialization but leading to problems of unemployment and less demand for unskilled labor for various jobs.