Ocean Acidification Quiz

What is ocean acidification?

• The process of lowering the pH of the oceans

• The process of lowering the salinity of the oceans

• The process of increasing the pH of the oceans

• The process of increasing the salinity of the oceans

Tags

NGSS.HS-ESS3-1

NGSS.HS-LS2-5

Why are atmospheric CO2 levels increasing?

• Due to increased burning of fossil fuels

• Due to decreased deforestation

• Due to increased deforestation

• Due to decreased burning of fossil fuels

Tags

NGSS.HS-ESS2-2

NGSS.HS-ESS2-6

Describe how the addition of carbon dioxide can lower the pH of sea water.

• It forms carbonic acid which releases hydroxide ions, raising the pH

• It forms sulfuric acid which releases hydrogen ions, lowering the pH

• It forms sulfuric acid which releases hydroxide ions, raising the pH

• It forms carbonic acid which releases hydrogen ions, lowering the pH

Describe one way that a drop in pH can harm marine life in the oceans.

• It can increase the growth of marine organisms

• It can break down the calcium carbonate exoskeleton of many marine creatures

• It can decrease the growth of marine organisms

• It can enhance the formation of calcium carbonate exoskeletons in marine creatures

Tags

NGSS.HS-LS4-5

What is the relationship between the CO2 levels in the atmosphere and the pH levels in the ocean?

• As CO2 levels increase, pH levels increase

• As CO2 levels increase, pH levels decrease

• As CO2 levels decrease, pH levels increase

• As CO2 levels decrease, pH levels decrease

Tags

NGSS.HS-ESS2-6

Describe the chemistry that explains the data in the ALOHA graph.

• CO2 reacts with water to form carbonic acid which releases hydroxide ions, raising the pH

• CO2 reacts with water to form carbonic acid which releases hydrogen ions, lowering the pH

• CO2 reacts with water to form sulfuric acid which releases hydroxide ions, raising the pH

• CO2 reacts with water to form sulfuric acid which releases hydrogen ions, lowering the pH

Tags

NGSS.HS-ESS2-5

During what season is there a peak in CO2?

• Winter

• Fall

• Summer

• Spring

Tags

NGSS.HS-ESS2-6

NGSS.HS-LS2-5

Explain the peak in CO2 during the winter season.

• Increased photosynthesis and reduced fossil fuel use

• Increased photosynthesis and increased fossil fuel use

• Decreased photosynthesis and reduced fossil fuel use

• Decreased photosynthesis and increased fossil fuel use

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

During what season is there the lowest level in CO2 within each year on the graph?

• Winter

• Summer

• Spring

• Fall

Tags

NGSS.HS-ESS2-6

NGSS.HS-LS2-5

Explain the lowest level in CO2 during the summer season.

• Increased photosynthesis and reduced fossil fuel use

• Decreased photosynthesis and increased fossil fuel use

• Increased photosynthesis and increased fossil fuel use

• Decreased photosynthesis and reduced fossil fuel use

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5