Earth is called a unique planet since it is the only planet in the solar system which supports life due to its balanced proportions of water, temperature, and oxygen
I think the two sources would be drip irrigation which is like a river, lake, groundwater, etc... The second source could be is making a new irragation system that could deliver water faster.
Non-price rationing system is commonly done by queuing (to resolve rationing problems brought by price ceilings) and by coupons (to restore buyer equilibrium). Favored customers who received special treatment from dealers when there is an excess demand, which means: owners giving goods and services to their friends, is another non-price rationing mechanism.
Geography is land based areas and regions that were constructed by nature, (dirt,iron,ore) it relates to the construction industry because they used the materials nature has used to create the land.
