These mysterious metal spheres that are often classified as out of place artifacts are found in Ottosdal, South Africa. They have been dated to be 3 billion years old when the earth was too young to host intelligent life capable of creating these spheres and hence won the attraction of the scientific community.
However various geologists agree that the spheres originated as concretions which formed in sediments, ash or both after they accumulated.
Well for most of the people doing A/Ls in science stream, chemistry is a nightmare, especially for physical science students. So today I'm going to tell you how to write to a chemistry paper in a much different way than you always do. Well it worked for me,and you should test this way with a model paper or in a term test before you go to exam.This saves time and also you can easily score 90+.
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