The time when Muhammad was forced to flee from Mecca marked the start of the . A. Islamic calendar B. medieval period C. teachings of the Qur’an D. position of caliph. Indus C. Niger D. Euphrates

Correct answer is A. Islamic calendar.

Explanation:

A is correct as this answer known as Hijra happened in 622. This year marks the period from when the Muslims started counting time.

B is not correct as Medieval period starts with the fall of Western Roman Empire.

C and D are not correct as this don't refer to the Muhammed's move from Mecca to Medina.

b. 20: 5

explanation:

20% of the worlds population lives in southwest asia, and less than 5% of the world's

land area.