Palm leaves.
Religion is very big and important in muslim life.
A mosque is a building for Muslim religious worship. It is important as a place of prayer and communal organization for the local Muslim community.
name important valley in muslim world?
because it shapes the conduct of a muslim
Ramadan and Eid
He was important because he created another Muslim empire in india
Yes.
Hitler
In Islamic countries.
The question as written makes no sense. If you mean "What was the most important Muslim scientific achievement?", see the Related Question below.
Holy Mosque in Makkah Prophet Mosque in Madinah Al-Aqsa Mosque in Jerusalem