Answer:
1) iv. Turkey became an independent nation.
2) iii. The Arabian peninsula began to unite.
3) ii. The Iranian Revolution brought reform.
4) i. Protestors sparked the Arab Spring.
Explanation:
1) Under the leadership of Mustafa Kemal Atatürk, the most prominent member of the Turkish National Movement, the Turkish War of Independence was fought to revoke the terms of the Treaty of Sèvres that had distributed to the Ottoman Empire among the Allies. In 1922, the occupation armies were rejected and the country saw the birth of the new Turkish state. On November 1, the newly founded parliament officially abolished the Sultanate, ending 623 years of Ottoman rule. The Lausanne Treaty of 1923 led to the international recognition of the sovereignty of the newly formed "Republic of Turkey" and the Republic was officially proclaimed on October 29, 1923, in the new capital of Ankara.
2) The modern Saudi state was founded after the Unification of Saudi Arabia by the last king Abdelaziz bin Saud. In 1902, Riad, the ancestral capital of the Al-Saud dynasty, of the rival Al Rashid family was conquered. Continuing his conquests, Abdelaziz subjugated Al-Hasa, Al-Qatif, the rest of the Nejd and Hijaz between 1913 and 1926. On January 8, 1926, Abdelaziz bin Saud became the king of Hijaz. On January 29, 1927, he took the title of King of Nejd (the previous title of Nejd was that of the Sultanate of the Nejd). Through the Treaty of Yida, signed on May 20, 1927, the United Kingdom recognized the independence of the kingdom of Abdelaziz (then known as the kingdom of Nejd and Hijaz). In 1932, these regions were unified in the current Kingdom of Saudi Arabia.
3) The Iranian revolution was a process of mobilizations that led to the overthrow of the Pahlaví Dynasty under Sah Mohammad Reza Pahlevi in 1979 (who had the support of the United Kingdom and the United States), and which meant the establishment of the Islamic Republic currently in force in Iran.
4) The manifestations of the Arab world of 2010-2013, known as the Arab Spring, corresponded to a series of popular demonstrations that demanded, according to protesters, democracy and social rights organized by the Arab population.
