Answer:
During the high Middle Ages, the Roman Catholic Church became organized into an elaborate hierarchy with the pope as the head in western Europe. He establish supreme power.
Explanation:
The key difference between first and second industrial revolution is that the first industrial revolution was centered on Textiles, steam power, and iron while the second was centered on steel, railroads, petroleum, chemicals and electricity.
It is called the deep background. It is a way of reporters keeping it as a secret and letting the report as a confidential in respect of the people who are involve with it. It is a way of not having some facts to be included on their report when it is a deep backrgound in respect and to show their view to the subject matter.