Causes and remedies of each case for metals

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Across
  1. 3. A metal that resists corrosion naturally (Remedy)
  2. 4. A process where metal deteriorates due to its reaction with oxygen and water (Cause)
  3. 6. The wearing away of metal due to friction or chemical reaction (Cause)
  4. 8. A chemical reaction that causes iron to rust (Cause)
Down
  1. 1. A process used to prevent rusting (Remedy)
  2. 2. The process of covering metal with a protective layer (Remedy)
  3. 5. An environmental factor that speeds up rusting (Cause)
  4. 7. The addition of zinc to protect iron from rusting (Remedy)