Answer:
The government should invest more money in agriculture.
The factors that motivated the Europeans to participate in a crusade is having the chance to expand and discover new lands for their empire, to gain a title and fame, to gain riches, to serve their religion and God, and because the Pope told them that if they join in the Crusade, their sins would be forgiven.
Thats was one contry america
In any energy pyramid, only 10% of the available energy is passed from one level to the next.
Hope this helps :D