Which of the following processes is NOT a way that carbon could move between the atmosphere and the biosphere?

Question 4 options:

respiration (breathing)


combustion (burning)


deep burial, compaction, and cementation


photosynthesis

Question 5 (2 points)
What is the only natural way that carbon can move OUT of the geosphere?

Question 5 options:

burning of fossil fuels


volcanic eruptions


dissolution


decomposition

Question 6 (1 point)
Which carbon reservoir contains the MOST carbon?

Question 6 options:

fossil fuels


atmosphere


land biomass


rocks

Question 7 (2 points)
Which carbon reservoir changes the quickest and has the biggest direct effect on climate?

Question 7 options:

land biomass


ocean


atmosphere


rocks

Question 8 (2 points)
Which best describes the process of ocean acidification?

Question 8 options:

The ocean absorbs more human-produced CO2, causing the acidity to increase


The ocean releases more human-produced CO2, causing the acidity to decrease


The ocean absorbs more natural CO2, causing the acidity to decrease


The ocean receives more polluted runoff, causing the acidity to increase

Question 9 (2 points)
What is a potential impact of ocean acidification?

Question 9 options:

Animals will have a harder time building their shells


Corals may have a harder time building their skeletons


Ocean ecosystems may suffer, making it harder for humans to get food from the ocean


All of the above