It removes tarnish and renews the shine.
Yes!
Cape Cod Silver cleaner
the affect is cleaner environment and cleaner air?
There are several ways. You can get a silver cleaning cloth or a liquid silver cleaner where you dip the silver into and then wipe it clean.
The best way to clean a silver item like a cleaner is a commercial silver cleaner. Some other preparations like lemon juice and water are somewhat effective too.
A silver polish or liquid cleaner that is made for silver products. Some others use wax.
yes, you can, it won't make a difference.
yes, silver cleaner helps
yes
If it is dirty enough it will effect performance and fuel mileage.
Toxic,, unhealthy, dangerous ...
deflation