I highly doubt the Vatican uses dams, but I believe everybody else does.
i dot know
Every country that participated in WW1 used technology.
The same thing modern dams are used for. To hold back water.
Dams can be used to produce hydro electric power
electricity dams/hydro dams
it should not be used in any country
Every country in the war used propaganda. Japan, the U.S, the U.K, Russia. every single country used propaganda. It's a common thing to do during war time ans even used in daily life even today.
Every country
electricity
Potential energy is used to tap at dams. The energy is stored due to the height of the dam.
You can both get fresh water from the wells and dams.
The metric system is most widely used, used in every country with the exception of America and Belize.