The telephone and the light bulb
Rotation.
Crop rotation is when a farmer changes the crops grown in the same field each year to ensure he gets the best harvest possible by not exhausting the soil of specific nutrients by repeatedly growing the same thing.
The answer is D power makes some people cruel
According to Zimbardo and his colleagues, the Stanford Prison Experiment demonstrates the powerful role that the situation can play in human behavior. Because the guards were placed in a position of power, they began to behave in ways they would not usually act in their everyday lives or other situations.
During his bad period, Ivan the Terrible organized a secret police who killed everyone whom he thought might be a traitor.
Ivan the Terrible came to the throne in 1533. He was named Ivan the Terrible because he ruled by terror. This happened after his wife died. However, he also reformed Russia during his good years.
Answer:
In 1912, the Xuantong Emperor abdicated as a result of the Xinhai Revolution, and the Republic of China was established in Nanjing by revolutionaries under Sun Yat-sen. ... The Republic of China, led by President Chiang Kai-Shek, retreated the government of the Republic of China to Taiwan.