Sustaining Earths Ecosystems
Earth has 2 types of ecosystems, they are Marine and Freshwater. Marine is saltwater, it covers approximately 71% of the earths surface and contains approximately 97% of the planets water.
Freshwater covers about 0.8% of the earths surface and 0.009% of its total water. 41% of the worlds known fish species are contained in the Freshwater ecosystem, there are 3 basic types of freshwater ecosystems.
Earth has 2 types of ecosystems, they are Marine and Freshwater. Marine is saltwater, it covers approximately 71% of the earths surface and contains approximately 97% of the planets water.
Freshwater covers about 0.8% of the earths surface and 0.009% of its total water. 41% of the worlds known fish species are contained in the Freshwater ecosystem, there are 3 basic types of freshwater ecosystems.