Ocean Acidification Graph

What does the blue line show?

• CO2 in the water

• Air temperature

• Carbon emissions

• pH of the water

Tags

NGSS.HS-ESS2-6

What does the orange line show?

• CO2 in the water

• Air temperature

• Carbon emissions

• pH of the water

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 happened to the pH between 1989 and 2014?

• it increased by 8

• it decreased by .5

• it increased by 30

• it decreased by 30

Tags

NGSS.HS-ESS2-6

As the pH decreases, what happens to the pCO2?

• it increases

• it decreased

• it stays consistent

• it disappears

Tags

NGSS.HS-ESS2-6

What does a pH of 8.1 mean?

• Neutral

• weak base

• strong base

• strong acid

As the pH decreases, what happens to the ocean?

• It becomes more acidic.

• It becomes more basic.

Tags

NGSS.HS-ESS2-5

NGSS.HS-LS2-6

What was the pCO2 around 1994?

• about 300

• about 350

• about 325

• about 375

Tags

NGSS.HS-ESS2-6

What was the pH around 1989?

• about 8.1

• about 7.5

• about 8.5

• about 8.9

Tags

NGSS.HS-ESS2-6

A line of best fit (or "trend" line) is a straight line that best represents the data on a scatter plot.

This line may pass through some of the points, none of the points, or all of the points. What represents the line of best fit in this graph?

• straight lines

• dotted lines

• points

• numbers