pH and Ocean Acidification

This image demonstrates that...

• There is a direct correlation with the atmospheric CO₂ and the CO₂ in seawater

• That pH of the ocean increases as the atmospheric CO₂ increases

• That there is no correlation between pH of the ocean and atmospheric CO₂

Tags

NGSS.HS-ESS2-2

As the ocean becomes more acidic, the pH of the water...

• increases

• decreases

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

• True

• False

Tags

NGSS.MS-LS1-5

The pH scale is a range from:

• 1-7

• 0-14

• 1-5

• 1-20

When carbon dioxide is absorbed by seawater, chemical reactions occur that reduce seawater pH, carbonate ion concentration, and saturation states of biologically important calcium carbonate minerals.

• Coral bleaching

• ocean acidification

• oceanography

• ocean aging

Tags

NGSS.HS-LS2-6

What is ocean acidification?

• The process of ocean water becoming less acidic due to increased carbon dioxide levels.

• The process of ocean water becoming more acidic due to increased carbon dioxide levels.

• The process of ocean water becoming less acidic due to decreased carbon dioxide levels.

• The process of ocean water becoming more acidic due to decreased carbon dioxide levels.

Tags

NGSS.HS-ESS2-6

A(n) _______ is a substance with a pH greater than 7.

• Base

• Acid

• Buffer

• Water

Carbon dioxide and seawater combine to form...

• calcium carbonate

• carbon monoxide

• carbonic acid 

Tags

NGSS.HS-PS1-4

What do some marine creatures do with the carbonate ion?

• use it as a food source

• use it as a defense mechanism

• use it to build shells and exoskeletons

• use it to cool body temperatures

Which is the product of this reaction: CO₂ + H₂0 -->

• H₂CO₃

• CO₃

• CO₂

• H₃O⁺

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5