Acidic

Lemons and limes are acidic fruits.

When investigating the pH (acidic, neutral, alkaline) of a liquid, don't soak the litmus paper completely in the liquid but just put the end of the paper in it.

Ocean waters are becoming warmer and more acidic, broadly affecting ocean circulation, chemistry, ecosystems, and marine life. More acidic waters inhibit the formation of shells, skeletons, and coral reefs.

The oceans are currently absorbing about a quarter of the carbon dioxide emitted to the atmosphere annually and are becoming more acidic as a result, leading to concerns about intensifying impacts on marine ecosystems.

The ocean is becoming more acidic.

Lemon juice is an example of an acidic liquid.

When the ocean absorbs a lot of CO₂, the water becomes more acidic.

When CO₂ is absorbed by seawater, a series of chemical reactions occur resulting in the increased concentration of hydrogen ions. This increase causes the seawater to become more acidic and causes carbonate ions to be relatively less abundant.

Ocean acidification occurs when seawater absorbs carbon dioxide from the atmosphere. Carbon dioxide is released into the air by burning fossil fuels, like oil and coal. That makes the ocean more acidic, which harms shellfish, other marine life and plants.

Seas are warming, rising, and becoming more acidic.