Sentence. ASIA
The early Umayyad dynasty began in
The Umayyad dynasty had reached its greatest size by
the year
The Umayyad dynasty expanded through

Geothermic gradient is the rate of increasing temperature with respect to increasing the depth in the earths interior. away from tech tonic plates boundaries, it is about 25-40 c/km (72-87 degrees f/mi) of depth near the surface in most of the world.

Answer the collision of tectonic plates;

Iwould choose c or d

"the socialist system that had been in place had brought economic ruin to the country." i hope this !