YS

Climate Change Topic

The Carbon Cycle

  • Carbon and other nutrients cycle through nature.

  • The Earth has 4 spheres

  • The biosphere: consists of all life on Earth

  • The geosphere (also lithosphere): consists of the land (crust to land). Its made of metals and rocks.

  • The atmosphere: The sphere which has a lot of gases (mostly nitogen (78%), oxygen (21%)) The atmosphere has 5 layers (the troposphere (we live here), stratosphere (ozone layer) , mesosphere, thermosphere and the exosphere)

  • The hydrosphere: made up ALL of the water in the world.

  • Location doesn’t matter, its more about what it contains (hydrosphere, biosphere)

  • The carbon cycle is the movement of carbon through the different sphere.

  1. Photosynthesis

CO2+ H2O ————— C6H1206 + O2

  1. Transfer in food chain

  2. Respiration

  3. Decomposition or ecretion

  4. Formation of fossil fuel