I'll answer just your first question. On Brainly, it's good to post separately for each question you have.
In the 1920s, people were so eager to invest and earn profits through the stock market that they bought stocks "on margin." In other words, they paid for only a marginal percentage of the stocks with their own funds, and borrowed bank funds for the rest of the purchase. By the late 1920s, 90% of the purchase price of stocks was being made with borrowed money. This inflated the market in a way that spiraled out of control, and in 1929 the market crashed.
In response to the market crash and the beginning of the Depression, the Smoot-Hawley Tariff (officially the Tariff Act of 1930) tried to protect American jobs by imposing heavy tariffs on imported goods. But what this did was to provoke other countries to impose their own tariffs as a response. As a result, world trade was greatly diminished and the Depression spread globally.
The world is facing a genocide issue because of low tolerance. Low tolerance for other cultures, people, and low acceptance. We can prevent this by removing those in power who promote this and fighting to unit ourselves. We can become more knowledgeable about other people and their beliefs, and spread peace instead of hatred.
Governments use price ceilings to protect consumers from conditions that could make commodities prohibitively expensive.
<span>Two major effects of the Crusades were that the kings' authority increased and the Europeans learned about new things from the Muslims they encountered.During the Crusades, the kings increased taxes to fund the cause. Many peasants also left their land to fight, and when they died, the land went to the king. With large amounts of money and land coming in, the kings gained power.</span>
