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.
Bannock is usually made from whatever ingredients you have on hand. The recipe will be altered to create the type of mixture you require, for whatever method you are cooking it. Minimum ingredients would include some type of flour, and a liquid to bind the flour together.ade just like Bannock only with Baking Soda! In a large bowl mix together the dry ingredients. Make a well in the center, and pour the milk into the well. Mix in the flour from sides of the bowl, adding more milk if necessary. The dough should be softish, not too wet and sticky.