Question 1) About five thousand years ago, the rains over the Sahara began to decline and grasslands gave way to desert. The population of this region began to migrate east and south. Describe how the landforms and climate of Africa influenced how tbese people lived as they settled in new areas. ( Question 2) Russia's rise as a nation is a story of influences from north, east, south, and west, and of powerful and ambitious rulers. Descthe influence of two of the following on the development of the Russian nation and culture. ● the Byzantine Empire. ● the Mongols. ● Ivan the Great. ( Will Mark Brainlest). Please only answer the two questions if you really knkw the answer.

In 911, a group of vikings lead by rollo besieged paris and chartres. after a victory near chartres on 26 august, charles decided to negotiate with rollo. the talks were led by hervé, the archbishop of reims. this resulted in the treaty of saint-clair-sur-epte, which granted rollo and his soldiers all the land between the river epte and the sea. it also granted him brittany, "for his livelihood". at the time, brittany was an independent land which france had not been able to conquer. in exchange, rollo promised the king his loyalty and military assistance when needed. also rollo also agreed to be baptised and to marry gisela, the king's daughter. the territory given rollo is about the same as upper normandy.