Stones, sharp rocks, wood, & animal bones.
I believe that they are the following:
1. Monarchs do not have absolute authority.
2. The monarchs must have parliament's consent to suspend laws, levy taxes, or maintain an army.
3. The monarch cannot interfere with parliamentary elections and debates.
4. The people have a right to petition the government and to have a fair and speedy trial by a jury of their peers.
Answer:
There were 4 major causes (actually) that led to the Great Depression, which were:
-the stock market crash in 1929
-bank failures (similar to the one in 2008, but I'm just nerding out at this point)
-over-production
-drought.
Explanation: