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Mt St Helens
The evidence that i have is when we were at mt st helens a lady said that mt st helens could re-build again.It erupts every 100-200 years.
Article posted October 2, 2011 at 05:32 PM •
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I agree. Mt. St. Helen's will rebuild itself. You need to capitalize your "i".
Comment Posted on December 5, 2011 at 03:11 PM by
I agree with you mt. St. Helene will probaly rebuild itself because it has already started to do that and good job
Comment Posted on October 4, 2011 at 10:25 AM by
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Acidic and basic are two extremes thatdescribe chemicals, just like hot and cold are two extremes that describe temperature. Mixing acids and bases can cancel out their extreme effects; much like mixing hot and cold water can even out the water temperature. A substance that is neither acidic nor basic is neutral.
The pH scale measures how acidic or basic a substance is. It ranges from 0 to 14. A pH of 7 is neutral. A pH less than 7 is acidic, and a pH greater than 7 is basic. Each whole pH value below 7 is ten times more acidic than the next higher value. For example, a pH of 4 is ten times more acidic than a pH of 5 and 100 times (10 times 10) more acidic than a pH of 6. The same holds true for pH values above 7, each of which is ten times more alkaline—another way to say basic—than the next lower whole value. For example, a pH of 10 is ten times more alkaline than a pH of 9.