Capitalism led more people to start new businesses, which increased which one of the factors of production

Answer(a); // soil salinization and waterlogging;

It is useful for historians to write narratives so that history can be passed on from their point of view.  think about a story being told in third person, then think about it again being told in first person, by someone who actually experienced the event.

The name may be in importnce  to them