Acidic and alkaline marine systems

How much of the CO2 in the atmosphere will be absorbed by the oceans?

• all of it
• 1/2
• 1/4
• none of it

Man made carbon dioxide comes from the burning of fossil fuels.  An example of a fossil fuel is

• wood
• oil
• shale

Tags

NGSS.HS-ESS2-6

NGSS.HS-ESS2-4

NGSS.HS-ESS3-2

Carbon dioxide and seawater combine to form

• calcium carbonate
• carbon monoxide
• carbonic acid 

Tags

NGSS.HS-ESS2-6

NGSS.HS-PS1-2

NGSS.HS-PS1-4

Marine organisms make their shells from calcium and

• chloride
• carbonate
• seawater

Tags

NGSS.MS-PS1-1

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

Tags

NGSS.HS-LS2-6

NGSS.HS-LS4-5

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

• increases
• decreases

Tags

NGSS.HS-ESS2-5

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

Who gets affected by ocean acidification?

• humans

• marine animals

• neither

• humans and marine animals

Tags

NGSS.HS-LS2-6

NGSS.HS-ESS3-1

What will happen to the ocean if the acidity gets too high?

• nothing

• animals will die

• the ocean's chemistry will change

Tags

NGSS.HS-ESS2-6

NGSS.HS-LS2-6