Unfortunately I am not yet allowed to comment to Sharks and Jerryno's discussion. I am relplying to Sharms' question:
@Jerryno Yes i will combine the textures together,(Problem) I only don't know how to unwrap the sphere as a plane as you did , can you tell me how To Do it manually ? – Shams El-Deen 1 hour ago
To get a proper rectangular unwrap create a new UV sphere and make sure "Generate UVs" is checked:
By doing so you do not even have to define a seam. When switching from object mode to edit mode the rectangular UV map will be there right away:
