Geological Carbon Cycle Processes

Question 1

Chemical Weathering

Answer 1

Carbon reacts with rain to create weak carbonic acid + reacts with rocks = becomes locked

Rock carried to oceans + sequestered by shell building marine biota, eventually becomes sedimentary rock

Question 2

Volcanic Activity

Answer 2

Volcanic eruptions release carbon from mantle, along with subduction releasing carbon

Question 3

Sequestration

Answer 3

CO2 dissolved, sequestered by shell building organisms

Animals die + sink to floor, create sedimentary rock

Locked in geological cycle

Question 4

Diffusion

Answer 4

Diffusion releases/ takes in carbon at ocean surface

Hotter regions means more diffusion takes place