Marine Science Chapter 3 Ocean Chemistry and Structure

Front

What is the process by which carbon dioxide combines with water to form carbonic acid?

Back

Carbon dioxide diffuses into the ocean and combines with water (H2O) to form carbonic acid (H2CO3).

Front

What is released when carbonic acid breaks down, causing ocean water to become more acidic?

Back

Hydrogen ions are released, causing the water to be more acidic.

Front

What percentage of marine life is found in coral reefs?

Back

Coral reefs are home to about 25% of marine life.

Front

What substance is essential for corals, mollusks, and crustaceans to create their skeletons and shells?

Back

Calcium carbonate is needed by corals, mollusks, and crustaceans to make their skeletons, shells, and structures.

Front

What are the three important dissolved gases for marine life?

Back

Oxygen (O2), Carbon dioxide (CO2), and Nitrogen (N2) are all important dissolved gases for marine life.

Front

Is sodium chloride the only kind of salt found in the ocean?

Back

False. Sodium chloride (NaCl) is not the only kind of salt in the ocean.

Front

What is ocean acidification?

Back

Ocean acidification refers to the decrease in pH levels of the ocean due to the absorption of excess carbon dioxide from the atmosphere.

Front

What role do phytoplankton play in marine ecosystems?

Back

Phytoplankton are primary producers that convert sunlight into energy through photosynthesis, forming the base of the marine food web.

Front

What is the significance of calcium carbonate in marine environments?

Back

Calcium carbonate is crucial for the formation of shells and skeletons in marine organisms, contributing to the structure of coral reefs.

Front

How does temperature affect the solubility of gases in ocean water?

Back

As temperature increases, the solubility of gases in ocean water decreases, affecting marine life that relies on dissolved oxygen.