Answer:
>iron releasing in water and oxygen makes it rusted.
> they are,
1. cooking utensils will be difficult to use as rusting harms our health.
2. rusting makes iron weak so, sometime it may cause the iron items may break and harm us.
3. it may cause titanus if it is unknowingly eaten.
> the ways are,
1. you can apply protective coating.
2. never release iron weted eith water in oxygen.
hope it will help uh...