The U.S. relies so heavily on oil that if it disappeared then they would probably be dragged down unless they found a better solution.
The U.S needs oil because, it runs cars, and also many other things. It runs boats for trade, airplanes, runs electricity creation plants, and it also creates our roads.
Feudalism started about A.D 700
It helped the French economy, which strengthened Napoleon's army.
<u>Answer</u>:
Gregory I increase the political power of the pope by (D) None of the above methods.
<u>Explanation</u>:
During this time, Gregory l increased the political power of the pope. This was achieved by contributing the church revenues for the welfare of the people. These money or the revenues were used to built roads and used for other essential requirements of the people.
Even to support financially for military and other public requirements, the church revenues were only used. This helped the poor and needy people also and saved their lives. Starting from laying roads and constructions of buildings it was only the revenue money used widely for all the developments.
