Ocean Acidification

Front

What is ocean acidification?

Back

Ocean acidification refers to the decrease in pH levels of the ocean caused by the absorption of excess carbon dioxide (CO2) from the atmosphere, leading to more acidic waters.

Front

Which marine organism is known to need calcium carbonate for its shell?

Back

A crab is an example of a marine organism that needs calcium carbonate to grow its shell.

Front

True or False: In a more acidic ocean, the shells of organisms do not grow as easily.

Back

True

Front

What happens when carbon dioxide ions react with water?

Back

They release hydrogen ions, which contribute to the acidity of the ocean.

Front

True or False: All carbon dioxide gas found in the ocean is due to human pollution from burning fossil fuels.

Back

False. While human activities contribute significantly, natural processes also release CO2 into the ocean.

Front

Which organism benefits from increased carbon dioxide in the ocean?

Back

Sea grasses benefit from the increase of carbon dioxide in the world’s oceans.

Front

What is the role of hydrogen ions in ocean acidification?

Back

Hydrogen ions increase the acidity of the ocean, affecting marine life and the ability of organisms to form shells.

Front

How does ocean acidification affect coral reefs?

Back

Ocean acidification weakens coral reefs by reducing their ability to produce calcium carbonate, essential for their structure.

Front

What is the primary cause of increased carbon dioxide levels in the atmosphere?

Back

The primary cause is human activities, particularly the burning of fossil fuels.

Front

What is the impact of ocean acidification on marine biodiversity?

Back

Ocean acidification can lead to a decline in marine biodiversity as species that rely on calcium carbonate may struggle to survive.