Answer:
Step-by-step explanation:
The supply and demand of the cereals were already given. The use of carbon fertilizers for the production of cereals will lead to an increase in the supply of cereals as more cereals will now be produced. Hence, the supply curve will shift towards rights designating an increase in the supply of cereals.
Now, these carbon fertilizers do not lead any effect on demand for cereals, this implies that equilibrium will shift downward, therefore consumers can get more quantity at a lower rate or decreased prices.