Anglais scientifique (traduction) (S1)

Vernadsky (1863-1945) is known as the ……mineralogist and crystallographer, the ……. of geochemistry, biochemistry and radiogeology. Many research …… were established by him. He was ……… president of the Ukrainian Academy of Sciences in 1919. At that time he lived and worked in Kharkiv which was the …….. of the Soviet Ukraine. He conducted …… in the geochemistry of………. Vernadsky advanced a revolutionary ……. of the origin of minerals which was described in his work ― An Experiment in Descriptive Mineralogy and History of Minerals in the Earth’s crust”. He …....for the radioactive minerals. The role of such minerals as radium and uranium was ………. by him.