Acidification

CO2 + H20 -->

• H2CO3

• CO3

• CO2

• H3O+

Which organism might benefit from the increase of carbon dioxide in the world’s oceans?

• crabs and lobster

• Fishes

• Clams and oysters

• Sea grasses

Tags

NGSS.HS-LS2-5

What happened to the pH between 1989 and 2014?

• it increased by 8

• it decreased by .5

• it increased by 30

• it decreased by 30

As the pH decreases, what happens to the pCO2?

• it increases

• it decreased

• it stays consistent

• it disappears

Tags

NGSS.HS-ESS2-6

As the pH decreases, what happens to the ocean?

• It becomes more acidic.

• It becomes more basic.

Tags

NGSS.HS-ESS2-6

What happened to the pCO2 between 1989 and 2014?

• it increased by 50

• it decreased by 50

• it increased by 100

• it decreased by 150

Tags

NGSS.HS-ESS2-6

NGSS.HS-ESS3-5

What was the pH around 1989?

• about 8.1

• about 7.5

• about 8.5

• about 8.9

Tags

NGSS.HS-ESS3-5

Carbon dioxide reacts with seawater and carbonate to form bicarbonate. This reduces the amount of carbonate available in the seawater which oysters use to build their ____________

• shells

• and skeletons

• all

Tags

NGSS.HS-ESS2-6

The increase of hydrogen ions causes ________

• an increase in ocean acidity

• a decrease in ocean acidity

Tags

NGSS.HS-LS2-5

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