The communist revolution in Cuba is the correct answer.
Answer:
B. Arab Spring
Explanation:
The Arab Spring started in 2010 in Tunisia.
From Tunisia, it spread to the rest of the Arab world by 2011.
Most of the protestors were young people who demanded government changes.
In some countries, the Arab Spring was successful. In Tunisia, the former president resigned after more than two decades in power, and the country became a democracy. The same happened in Algeria.
In other countries, the Arab Spring only led to minor changes (Bahrain, Jordan), in Egypt, the government was overthrown but replaced by a new regime, and in Libya and Syria, the protests escalated and became civil wars.
Lateen sail, astrolabe, magnetic compass, rudder, mapmaking skills (Latitude and Longitude), Caravel (let ships sail INTO the wind); All helped with European Exploration; Islamic scholars saved Greek and Roman texts, zero, medical advances, numbers/algebra
<span>Lack of technology to use them caused the cold war leaders to hesitate to use nuclear weapons.
</span><span>B. Lack of technology to use them </span>
