Final answer:
The prices of fruits and vegetables are often more expensive by volume than wheat due to factors such as production costs, supply and demand, and quality and variety.
Step-by-step explanation:
The prices of fruits and vegetables are often more expensive by volume than wheat due to several factors. One factor is the cost of production and cultivation. Fruits and vegetables require more labor-intensive cultivation methods compared to wheat, which is a staple grain crop. Additionally, fruits and vegetables have a shorter shelf life and require careful handling and transportation, contributing to higher costs.
Another factor is supply and demand. Fruits and vegetables are perishable goods that are in high demand, especially for their nutritional value. As a result, the limited supply and high demand can drive up their prices.
Lastly, the quality and variety of fruits and vegetables can also influence their prices. Specialty or organic fruits and vegetables, for example, are often priced higher due to their higher production costs and consumer preferences for these products.