Sunlight. Orchids require just the right amount of sunlight in order to grow successfully. If provided too little sunlight, the plant will fail to blossom; if provided too much sunlight, the blossoms will fade and the foliage will burn.
Nine thousand banks failed during the months following the stock market crash of 1929. It is far too simplistic to view the stock market crash as the single cause of the Great Depression. A healthy economy can recover from such a contraction. Long-term underlying causes sent the nation into a downward spiral of despair.
The depression ended completely soon after the United States' entry into World War II in 1941. In Europe, the Great Depression strengthened extremist forces and lowered the prestige of liberal democracy. In Germany, economic distress directly contributed to Adolf Hitler's rise to power in 1933.