Nitrogen Cycle Worksheet Directions: Using the word bank below, label the components of the nitrogen cycle by placing the correct number to the Nitrates (NO₂) Nitrites (NO,) Organic Ma Plant Cons Precipitatic Nitrification Nitrogen-Fixing Bacteria living in legume root nodes Ammonium (NH₂) Bacteria Fixation Decomposers Emissions Eutrophication Manufacturing Combustion of Fossil Fuels Denitrification: The Loss of Oxygen 18 Denitrifying Bacteria 17 Gaseous Atmospheric Nitrogen Stores Gaseous Losses N₂ & N₂O Leaching Lighting Fixation Mineralization Plants 13 12 14 15 16 3 Animals Nitrifying Bacteria Nitrification: The Addition of Oxygen 5 Name Manufactured Fertilizers 10 11 8 Runoff FTFD CHE Nitrogen Storag

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Terrestrial Ecosystem

An ecosystem is a collection of interconnected communities. It includes both living and non-living elements of specific strata. The terrestrial ecosystem is solely related to the ecosystem present on the land and covers 25 to 30% of the total earth’s surface area.