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