What is the solid part of a rocky planet? A:The Atmosphere B:The Geosphere
C:The Biosphere
D:The Hydrosphere

C:The Biosphere

Explanation:

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the factors that the economies of the muslim empires prosper were:

1- land trade routes-located between three continents  

2- sea trade routes

trade contributed to the spread of muslim empires, and with that islamic culture led to a growing feeling of internationalism resulted in the transfer of technology, science, and other cultural forms.

answer; philosophy;