Final answer:
The effects of natural phenomena and market forces can be described by the principle of supply and demand.
Step-by-step explanation:
The effects of natural phenomena like earthquakes and market forces can best be described as the effects of the principle of supply and demand.
In economics, the principle of supply and demand explains how economic agents, such as consumers and producers, respond to changes in the market. When there is a high demand for a product or service and a limited supply, prices tend to increase. On the other hand, when there is a low demand and a high supply, prices tend to decrease.
For example, in the case of earthquakes, the increased demand for construction materials like steel and cement can cause their prices to rise due to limited supply. Similarly, market forces such as changes in consumer preferences or production costs can impact supply and demand, leading to changes in prices and quantities of goods and services.