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Fractional distillation is the most suitable method to separate Ethanol and water.
Chromatography is the most suitable method to separate Xanthophyll and chlorophyll in green leaves
Scales is the common feature in birds, fish and reptiles.
Some people claim that Seal salt is better than Table salt (normal salt) because sea salt has lower sodium levels. However, this is a marketing gimmick. The major difference that exists between sea salt and table is texture, taste and the processing procedure. Sea salt it obtained through evaporation of ocean water which leaves behind minerals that add flavor and color. On the other, hand table salt is obtained from underground salt deposits and processed to remove minerals. Potassium iodide and other minerals are also added to table salt. Whichever you decide to use, make sure that you follow dietary guidelines. Read more on how table salt is processed: http://www.madehow.com/Volume-2/Salt.html From a nutrition point of view: https://www.mayoclinic.org/healthy-lifestyle/nutrition-and-healthy-eating/expert-answers/sea-salt/faq-20058512
Reasons for migration of the Eastern Cushites from their original homeland are;They moved in search of water and pasture for their livestock.The outbreak of diseases/epidermics forced them to moveAttacks from other communities forced them to move/external attacksThere was population pressure in their original homelandThey moved due to drought and famineFamily/clan dispute/conflicts forced them to migrate/internal conflictsSearch for land for settlementThey moved for adventure