What caused the Great Stock Market Crash of 1929 in the United States? And what caused the Great Depression?

There was a stock scare

Explanation:

There was a scare in the stock market so many investors pulled out their money, many people also started to take money from banks so banks eventually ran out of money.

answer; /// the correct answer is evidence of the olmec civilization has been found in southern american in a hot steamy forest, archaeologists have found earthen artifacts at several sites that were evidence of the olmec civilization. these   artifacts were mounds,courtyards and pyramids build of stones, also on top of the mounds were many monuments made of stone, some of these stone structures are very large, they weigh as much as 44