The answer would be, "D", "Scarcity of Resources".
The answer is B, faced dangerous trail conditions
"Nuclear atom" or "planetary model of the atom".
Answer:
The Answer is A
Explanation:
The Great Depression was the worst economic downturn in the history of the industrialized world, lasting from 1929 to 1939. It began after the stock market crash of October 1929, which sent Wall Street into a panic and wiped out millions of investors. A third of all banks failed. 1 Unemployment rose to 25%, and homelessness increased. 2 Housing prices plummeted 67%, international trade collapsed by 65%, and deflation soared above 10%.
BRAINLEST PLEASE