In the 1920s, what did businesses and industries do that caused the economy to slow down

The correct answer is: "They overproduced goods."

Apart from the financial crash, the intensity of the Great Depression was reinforced due to the simultaneous overproduction crisis.

In a situation of a demand shortage, there is an unsold part of the production. Such unsold items generate losses for the company. If low demand levels persist, companies will be forced to reduce their production and the amount of inputs, including labor. If employment levels are reduced, demand levels decrease further than before.

it is the dominance of   the spanish language and roman catholic region in mexico, french being the official language of several african countries, and the existence of a western-style government in south asian countries

mark other guy brainliest