The answer is A
Electron micrograph pictures showing a blue center surrounded by 2 layers.
The most appropriate answer is C ! in atomic bomb there is uncontrolled nuclear chain reaction !!
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The brownish-red powder on iron is called rust. It is formed by the reaction of iron and oxygen in the presence of water or air moisture. It is called oxidizing or rusting due to exposure to water and air.
The reactants are oxygen and iron the products are carbon dioxide and water and the process is oxidization.