The magnitude of an earthquake, usually expressed by the Richter Scale, is a measure of the amplitude of the seismic waves. The moment magnitude of an earthquake is a measure of the amount of energy released-an amount that can be estimated from seismograph readings.
Remove rust stains from virtually all surfaces you'll find in your bathroom. Restore porcelain bathtubs and sinks to their original condition, plus keep your toilet rust-free by using Iron Out Automatic Toilet Bowl Cleaner. Toilet Bowl and Water Tank Rust Stains â Use 1/2 cup (125 ml).
Before applying a rust stain preventer, you need to completely remove the existing rust stains. Rid O' Rust powder formula mixes easily and removes rust from nearly any surface. Whether it's your boat, your house, or your driveway, Rid O' Rust will quickly eliminate unpleasant rust stains with its safe biodegradable formula. 12 oz. container makes 1 gallon of rust stain remover.