Is the glass half empty or half full? shown that a speaker's choice of frame can reflect their knowledge of the environment, and that listeners can be sensitive to this information. Is the glass half empty or half full? "Is the glass half empty or half full?" is a common expression, a proverbial phrase, generally used rhetorically to indicate that a particular situation could be a cause for optimism (half full) or pessimism (half empty), or as a general litmus test to simply determine an individual's worldview. The purpose of the question is to demonstrate that the situation may be seen in different ways depending on one's point
Alkalinity denitrification and sulfate reduction, have a much greater impact on oceanic alkalinity. Denitrification and sulfate reduction occur in the deep ocean, where there is an absence of oxygen. Both of these processes consume hydrogen ions and releases quasi-inert gases (N or HS), which eventually escape into the atmosphere. This consumption of H increases the alkalinity. It has been estimated that anaerobic degradation could be as much as 60% of the total oceanic alkalinity. Anaerobic processes generally increase alkalinity. Conversely, aerobic degradation can decrease A. This process occurs in portions of the ocean where oxygen is present (surface waters). It results