It is possible to use dirt, but not recommended. Sand is preferably used because when you land on it there is a lot of "give" to it to help absorb shock so it is better on your joints. It is less likely to pack down like dirt would do, which causes a harder surface. It would not be good for your knees.
sandy sand
just that: the sand pit.
a sand pit
Two events in athletics use a sandpit: the long jump, and the triple jump.
Sulphate is the ion in lawn sand that kills moss. Lawn sand may contain ammonium sulphate or iron sulphate. It works as a homemade or store-bought treatment since it just requires equal amounts of sand (kiln-dried block paving sand or silver) and sulphate.
because it was more easier
So they land soflty
so you don't hurt your self
um...sand,legs,body etc.
Long jump is measured from the takeoff line to the closest landing point in the sand pit. The distance is measured in meters from the edge of the takeoff board where the athlete's foot leaves the ground to the mark left by the athlete's nearest body part.
It is about 0.33 m deep.
um...sand,legs,body etc.