Ocean Acidification

What are the 2 mechanisms that are responsible for acidifying shallow ocean water? ​ ​

​

• Downwelling

• Upwelling

• CO₂ bubbling into ocean water from the atmosphere

• CO₂ escaping ocean water to the atmosphere

Tags

NGSS.HS-ESS3-5

Which of the following BEST reflects the impact that ocean acidification is having on shell-building creatures:

• The juvenile creatures cannot obtain the materials that they need to build their shells.

• The mature creatures' shells are dissolving at a faster rate due to the acidifyin water.

Tags

NGSS.HS-LS4-5

Why is deep water more acidic compared to shallower water (use the words cold, kinetic energy, and CO2 gas solubility).

Tags

NGSS.HS-PS1-5

What percent of human CO2 emissions enters the ocean?

• All of the emissions enter the ocean

• 25% of the emission enter the ocean

• 90% of the emission enter the ocean

• No atmospheric CO2 enters the ocean.

Tags

NGSS.HS-ESS2-6

NGSS.HS-LS2-5

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

• wood
• oil

Tags

NGSS.HS-ESS2-6

NGSS.HS-ESS3-2

When carbon dioxide ions react with water, what molecules do cause to be release?

• Hydrogen Ions

• Carbonate Ions

pH measures

• The mass

• The hydrogen ion concentration in a substance

• The concentration of nitrogen in a substance

• The concentration of oxygen in a solution

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

Tags

NGSS.MS-LS2-3

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-LS4-5