Biogeochemical Cycles

On the hydrosphere, lithosphere, and more.


All the components of water present on earth include bodies of water such as oceans and include the presence of water in the atmosphere e.g. vapour, hail, rain etc.


The rigid upper layer of the earths crust consisting of soil and rocks.


The layer of gas that surrounds the earth. Also concerns water, climate and mass of air pressure e.g. altitude.


Region of land, ocean and atmosphere that supports living organisms. It concerns the complexity of living organisms interacting with each other.

Abiotic Environment

The non-living chemical and physical factors in the environment. This includes things such as water, sunlight, oxygen, temperature, soil and climate.

Biotic Environment

The living organisms within an environment including plants and animals.

Trophic Levels

This describes the position that an organism occupies in a food chain, with relation to their predators and prey.

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