THE OXYGEN-CARBON DIOXIDE CYCLE.

Oxygen-Carbon Dioxide CycleBoth are important GASSES to all living

things.Unlike water which always stays water,

oxygen (O2) and carbon dioxide (CO2) convert back and forth as they cycle on the planet.

Carbon-dioxide

Carbon-dioxide is present in very small amounts in air. Yet , it plays a vital role in the living world through theprocess of photosynthesis.

CARBON

Atmosphere

OceanUnderground

Soil

Plants and animals

Carbon moves around in different parts of the earth. This is known as the Carbon Cycle.

CARBON CYCLE

CO2 Cycle - diagram

ANIMAL CONTRIBUTION During respiration

(breathing), animals inhale oxygen (O2) and convert it to carbon dioxide (CO2).

PLANT CONTRIBUTION During

photosynthesis (the process where plants make food for themselves) plants breathe in carbon dioxide (CO2) and exhale oxygen (O2).

DECOMPOSERS

Dead organic material contains carbon dioxide (CO2), so as decomposers break down the tissue, carbon dioxide is released into the atmosphere.

FOSSIL FUELS Oil, Gas, Coal are

examples. When these fuels are burned, they release carbon dioxide (CO2) and water (H2O) into the atmosphere.

Imbalance in Carbon - dioxide

QUIZ TIMEWhere all is Carbon present?What is CO2 or Carbon Cycle?How do plants and snimals have Carbon

in them?What factors are causing imbalances in

the Carbon Cycle?What can further imbalance in the

Carbon Cycle/ CO2 cycle lead to?What can we do to restore the balance of

the Carbon cycle?