OK so when a rock is weathered down this is a physical type of weathering.
Cation. Sodium has 10 electrons with 1 outer valence electron, and outer valence electrons are positive. This means that it will have a charge of +1, and a cation is a positively charged ion that is attracted to the cathode during electrolysis, which is the decomposition (chemically) of something that happens after an electric current passes through it.
Well it's thought that the oxygenation of the atmosphere contributed to the evolution
The correct answer would be, false.
