| http://www.w3.org/ns/prov#value | - This binds the soil and is extremely efficient in stopping erosion.Lawn grasses filter dust and dirt from the air, pollutants from water (making soil water much cleaner), and absorb unwanted gases such as carbon dioxide.Lawns absorb a great deal of water in heavy rain, greatly reducing the chance of flooding.A healthy lawn is a very soft surface (e.g. an egg can be dropped onto 4cm tall lawn grass
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