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This offers one thing of a passive safety measure , as eradicating the water from the reactor also slows the nuclear response down. However different methods are favored for stopping a reaction and it is preferred to maintain the nuclear core covered with water in order to ensure adequate cooling. The use of water for transportation of materials through rivers and canals in addition to the international shipping lanes is a crucial part of the world economic system. An acid, a hydrogen ion (H+, that's, a proton) donor, could be neutralized by a base, a proton acceptor such as a hydroxide ion (OH−) to type water. Acids have pH values lower than 7 whereas bases have values greater than 7. Even in oceans at 4 km depth, the place the stress is four hundred atm, water suffers solely a 1.8% decrease in volume. Pioneers of a extra Americanised popular nation music in Australia included Tex Morton (known as "The Father of Australian Country Music") within the 1930s. Author Andr