yes, the freezing wont work AS WELL
YeS
No rust in a horse's water does not harm the horses. Our horses have rusty water and they in perfect health.
Metal rust will not harm trees. There are a number of fungus rusts that can harm plants but they are not metal rusts.
Iron structures and objects are destroyed in time.
Sequencial
Yes, it will rust the steel
Eating off of a fork with a small amount of rust will cause you no harm. There is nothing that you need to do.
You want to avoid using chemicals in the freezer so to clean the metal runners, you can use a combination of baking soda and vinegar with an old toothbrush.
Rust is the easy way of saying Iron Oxide. It will not harm you in small amounts by showering in it, or even swallowing it. What the rust is telling you, is that there are some old pipes somewhere in your home that will be needing some replacing soon.
Rust and corrosion are hard on freeze plugs. In a temperate climate one might be tempted to not use anti-freeze coolant in the engine, but that's a mistake, since the water just speeds up the rust. With the salt air and humidity always working on anything that rusts, a freeze plug will easily rust through. Cost of repairing the freeze plug will vary greatly, depending on what needs to be removed to get to it. If the freeze plug is RIGHT THERE, with nothing in the way, it might cost you $20.00. If it's behind the starter, a motor mount, the air conditioner compressor or something else that's likely to be difficult to remove, replacing the freeze plug could cost a couple hundred dollars. The freeze plug itself is cheap. A couple dollars at most. But getting to it can be anywhere from simple to a major operation.
If you can get to it, yes. But understand that there is probably rust and corrosion elsewhere in the engine and you probably have a few corroded freeze plugs that haven't given out yet. You may need to pull the starter and exhaust manifold to get to the freeze plug, and replacement plugs are available. Once they start to go it probably won't be stopping any time soon. A good anti-freeze with a rust inhibitor is certainly worth the investment if for no other reason than it prevents freeze plug failure.
If you are seeing rust, it's not silver. It's silverplate and the plating has worn off. Silver tarnishes but does not rust. Having said that, Maas metal polish will take it off and it will not harm what silver there is. Talk with your jeweler about replating the item.