As a result of additional carbon dioxide in the atmosphere diffusing into the oceans, the water has become acidified. This is an example of:

Ocean acidification

Explanation:

Ocean acidification is the progressive decrease in the pH of the oceans on Earth as the increasing amount of carbon dioxide CO₂ in the atmosphere which is due mainly to fossil fuel combustion, is dissolved into the oceans

Carbonic acid is formed when carbon dioxide, CO₂, in the atmosphere is dissolved in the ocean water to form carbonic acid as follows;

CO₂ + H₂O → H₂CO₃

H⁺(aq) ⇄ HCO₃⁻ (aq)

According to L e C h a t e l i e r ' s an increase in the amount of carbon dioxide in the atmosphere will result in more CO₂ dissolving into the oceans and forming more carbonic acid, HCO₃⁻ (aq), thereby increasing the acidity of the oceans which is equivalent to a reduction in the pH of the ocean waters.

water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.