Ocean Acidification Flashcard

Front

What is ocean acidification?

Back

Ocean acidification refers to the process by which the ocean becomes more acidic due to increased levels of carbon dioxide (CO2) in the atmosphere, which dissolves in seawater and forms carbonic acid.

Front

What is the primary cause of increased atmospheric CO2 levels?

Back

The primary cause of increased atmospheric CO2 levels is the burning of fossil fuels, such as coal, oil, and natural gas.

Front

During which season do CO2 levels peak?

Back

CO2 levels peak during the winter season.

Front

What chemical reaction occurs when CO2 dissolves in water?

Back

When CO2 dissolves in water, it reacts to form carbonic acid (H2CO3), which can dissociate to release hydrogen ions (H+), lowering the pH of the water.

Front

What is the effect of increased photosynthesis on CO2 levels?

Back

Increased photosynthesis leads to a decrease in CO2 levels, as plants absorb CO2 to produce oxygen and glucose.

Front

What happens to CO2 levels during the summer?

Back

CO2 levels are at their lowest during the summer due to increased photosynthesis and reduced fossil fuel use.

Front

What is the relationship between ocean acidification and marine life?

Back

Ocean acidification can harm marine life, particularly organisms with calcium carbonate shells or skeletons, such as corals and shellfish, as it makes it more difficult for them to form and maintain their structures.

Front

What role do forests play in regulating CO2 levels?

Back

Forests act as carbon sinks, absorbing CO2 from the atmosphere through photosynthesis, which helps to mitigate climate change.

Front

What is carbonic acid?

Back

Carbonic acid is a weak acid formed when carbon dioxide dissolves in water, contributing to ocean acidification.

Front

How does ocean acidification affect coral reefs?

Back

Ocean acidification can weaken coral reefs by reducing the availability of carbonate ions needed for coral calcification, leading to slower growth and increased vulnerability.