What were 10 factors that led to wwi stalemate?

Trenches were dug by both sides in the war. The war made it to where both sides had casualities and deaths everyday, but neither side were gaining any land, so there wasn't anybody really winning. They just hid in their trenches and shot at any sign of life. (They also shot at light cigarettes, birds etc because they thought it was the soldiers.)

It taught people how to live a good life, but not what to believe.