Answer: they provided water for drinking and agriculture
Explanation:
The treaty of varsailles restricted Germany for example : having a great army and building their navy and stripping away their territories, making the then leaders of Germany upset as well as the German people. hence setting the stage for Hitler to take power and take Germany and the world into ww2
Laws are no longer strictly enforced.
The launching of D. Sputnik started the space race
Maslow study could be critized for reduced generalizability.