Hydrosphere

Question 1

Overview

Answer 1

Ocean plays important role in carbon cycle

Oceanic stores can be divided into 3

Question 2

Oceanic stores

Answer 2

Surface layer= where sunlight penetrates is that photosynthesis can occur (900 GtC)

Intermediate and deep layer of water= 37,100 GtC

Living and organic matter (fish, plankton, bacteria)= 30 GtC

Question 3

Organisms

Answer 3

When organisms die their dead cells, shells and other parts sink deep into water
Decay released CO2

Some material sinks right to the bottom where it forms carbon rich sediments

Over millions of years these sediments turn into rocks