The Blue Nile begins at Lake Tana in Ethiopia and flows into Sudan from the southeast. The two rivers meet just north of the Sudanese capital of Khartoum. The northern section of the river flows north almost entirely through the Sudanese desert to Egypt, then ends in a large delta and flows into the Mediterranean Sea.
Georgius Agricola (Georg Bauer), also known as the 'father of mineralogy', is considered the founder of geology as a scientific discipline. That is, he provided the foundations for the study of the Earth (and its rocks, minerals, and fossils), in a systematic, recorded, way.
Things like food shortage, war destruction, and weapons.
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pluto, neptune, Uranus, and jupiter
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