Oceanography check in 5/16

Question 1

What percentage of atmospheric CO2 does the ocean absorb annually?

Answer 1

25%

Question 2

What is ocean acidification?

Answer 2

Ocean acidification is the decrease in the pH of the ocean, primarily caused by the absorption of excess carbon dioxide (CO2) from the atmosphere. This will take away the support and stuff that makes shells for sea animals.

Question 3

Question
What is the projected pH of ocean surface waters by the end of this century?

Answer 3

7.8 pH

Question 4

How does ocean acidification affect carbonate ions in seawater?

Answer 4

Reduces their availability

Question 5

What is a direct impact of acidification on marine organisms?

Answer 5

A direct impact of ocean acidification on marine organisms is it makes it more difficult for marine organisms to build their protective shells.

Question 6

Match the carbon reservoir to the manner in which it cycles carbon
Atmosphere:
Biosphere:
Geosphere:
Hydrosphere

Answer 6

Atmosphere: Gas to solid (photosynthesis) OR Solid to gas (cellular respiration)
Biosphere: solid to gas (cellular respiration OR Gas to solid (photosynthesis)
Geosphere: Solid to gas (combustion)
Hydrosphere: Dissolved