(ËvÉr bÉl) adj. 1. of or consisting of words: verbal ability. 2. spoken rather than written; oral: verbal communication. 3. concerned with words only, rather than with the ideas, facts, or realities expressed: a purely verbal distinction. 4. corresponding word for word; verbatim: a verbal translation.
Life is the process that resolves these disequilibria.. The water world theory suggests that the warm, alkaline hydrothermal vents maintained an unbalanced state with respect to the surrounding ancient, acidic ocean - one that could have created two chemical imbalances. The first was a proton gradient, where hydrogen ions were concentrated more on the outside of the vent's chimneys.
The new, hard evidence that there is water deep in the Earth comes from a tiny grain of rock â just four-hundredths of a millimetre in diameter â trapped inside the diamond. That grain was made of ringwoodite â a form of the green mineral peridot that has never before been found on Earth, except in meteorites from space.