In the formal language of economics, X and Y are substitutes if the demand for X increases when the price of Y increases, or a positive cross elasticity of demand.
Potting mix is the material that goes into a garden pot before you put seeds and plants into it. 1  It keeps the plant in place. 2  It holds water for the plantâs roots to soak up.  It contains nutrients that feed the plant.
A bubble hash is made from pure trichomes taken out from the marijuana plant. The method used in making a bubble hash is more like a combination of a blender and screen methods. Secure a bucket and a bubble bag. Place the buds on the bucket. Trichomes are made brittle using the ice and cold water.