(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.
Evaporation is when a liquid changes into a gas. Liquid water evaporates to become a gas called water vapor. The sun's heat helps water evaporate and return to the atmosphere. There, it turns from water vapor back into liquid water and forms a cloud. Eventually, this water may return to Earth as rain or snow. In the water cycle, water moves from the land, lakes, and oceans to the atmosphere and back again.