Climate Change and Ocean Acidification

Ocean acidification begins with 

• pollution from ships
• carbon dioxide released from combustion
• dumping of waste from cities into the ocean

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Carbon dioxide and seawater combine to form

• calcium carbonate
• carbon monoxide
• carbonic acid 

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Marine organisms make their shells from calcium and

• chloride
• carbonate
• seawater

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An example of a marine organism that needs calcium carbonate 

• a crab
• a shark
• an octopus

Very slight increases in the acidity of seawater __________  marine organisms that make shells.

• doesn't bother
• has no effect on 
• is unhealthy and stresses

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Carbon dioxide levels in the air have changed throughout earth's history.  The difference today is how ______ the change is happening.

• rapidly 
• slowly 
• wide spread

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Which molecule makes water acidic?

• Carbonate Ions

• Carbon Dioxide

What happens to 1/4 of the greenhouse gases in the atmosphere?

• It is released into space.

• It gets absorbed by the ocean.

When carbon dioxide ions react with water, what molecules do they release?

• Hydrogen Ions

• Carbonate Ions

According to this slide

• CO₂ is causing marine life to die by "poisoning' the water

• CO₂ is destroying sea shells

• CO₂ is formed from the combustion of Octane

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