Answer to Question 1
Middle East: The political boundaries of the Middle East encompass an area that runs from south of the Sudan in North Africa, through Israel to the top of Turkey in southwest Asia (sometimes called Asia Minor), and from Mauritania on the west coast of Africa through Afghanistan and Pakistan in southern Asia.
Arab World: The 22 nations where the Arabic language is spoken by the majority. See answer to question 1 above for list of all of the nations of the Arab world.
Muslim World: The religion of Islam is prominent throughout the Arab world and the Middle East; however, only about 20 of the world's Muslims (people of the Islamic religion) live in the Arab world, and the majority of Muslims live in South and Southeast Asia. In fact, Indonesia, Pakistan, India, and Bangladesh have the largest Muslim populations.
Answer to Question 2
Clarification of terminology: the Middle East, the Arab world, and the Muslim world
Listening to a call to prayer with a discussion of the relationship between music, spirituality, and Islamic practice, and the surrounding history
An interview with an Iraqi performer/composer and refugee in the U.S.
Music and history of the Western Arab world (maghrib): Jewish Sephardic music
Women's communal music-making in North African wedding rituals
Poetry in Arab culture: music and poetry and improvisation in both media
The music of Israel and the Palestinian territories; listening to music that highlights the roots and routes of Arab music
The Sun as it appears from the surface of Earth during the middle of the day
In 2013, Americans learned that the federal government massively surveys their phone calls and e-mai
Humid Middle-Latitude Climates with Mild Winters (C)
Permian world
Harvard Alumni Study show who are more physically active in middle adulthood
Dry Shrublands and Woodlands on the world map