The correct answer is "Elected leaders were capable of abusing their power."
For Lyndon B. Johnson, he abused the powers given to him in the Gulf of Tonkin Resolution passed by the United States Congress. His massive escalation in Vietnam despite the lack of US success shows how he abused his executive power.
For Richard Nixon, he tried to cover up a huge break in to the Democratic National Convention headquarters at the Watergate complex. He tried to use the excuse of "executive privilege" as a means to keep his recorded conversations from the American public.
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 Triple Alliance, or Central Alliance (Allies were the Triple Entente), was made up of Austrio-Hungary, Germany, & Ottoman Empire, and included such as Belgium, & their colonies.
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The widths of canals is your correct answer. ( I had the same one, and i got it right!)
