9. Explore the carbon cycle

water cycle

The continuous movement of water on, above and below the surface of the Earth.

biotic

Any living component that affects another organism or shapes the ecosystem.

abiotic

Physical rather than biological; not derived from living organisms.

carbon cycle

When carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the Earth.

nitrogen cycle

When nitrogen is converted into multiple chemical forms as it circulates among atmosphere, terrestrial, and marine ecosystems.