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TRUE or FALSE
____6.Sub-type irrigation is a type that is very high in cost because the water source is underground.
____7.Proper irrigation is a practice to help promote the growth of roots and improve aeration for fast absorption of nutrients by the soil.
____8.Fertilizerus any substance added to the soil that promotes the healthy growth of plants.
_____9.Organic fertilizers are artificial fertilizer made from chemicals (liquid,soluble,and granular from).
____10.Hilling-up is cultivating the soil towards the base of the plant.