Question

People are now able to eat more fresh food than their great-grandparents, increasing their standard of living.

What contributed to this?

A. Lower taxes on fruits and vegetables

B. The use of refrigeration in farming

C. Government regulations require fresher food

D. Demand for food that isn’t fresh dropped

Explain

Answer 1

Answer:

People are now able to eat more fresh food than their great-grandparents, increasing their standard of living.

The one that is contributed to this is:

B. The use of refrigeration in farming

explanation:

Agricultural producers use a variety of refrigeration systems to extend the shelf life of perishable materials. Cooling not only reduces the potential for spoiling due to bacterial growth but also reduces humidity levels for some products. Refrigeration may also be used during sorting, processing, packaging, and storage.

Fruit and vegetable farm refrigeration systems are operated most intensively during the warmest months of the year, often when electrical costs are at their highest levels. Improving energy efficiency of refrigeration systems can therefore lead to significant savings. This can be accomplished by:

• Precooling produce with cold water before putting it into refrigerated areas.
• Improving insulation of the refrigerated cold storage area.
• Reducing infiltration of warm air through the doors, cracks, and other openings.
• Regular maintenance and servicing of refrigeration equipment.
• Utilizing energy-efficient compressors, heat exchangers, and refrigerants.
• Taking steps to prevent and detect refrigerant leakage

Dairy farmers also rely heavily on refrigeration equipment, but on a daily rather than seasonal basis. Dairy farming is one of the most energy-intensive agricultural operations, using electrical power to operate vacuum pumps and to pump water, ventilate structures (heat and cool), provide lighting, heat water, and, most importantly, refrigerate milk.

Refrigeration systems with scroll compressors are 15% to 20% more efficient than traditional reciprocating compressor systems. These compressors can be used for cooling milk or for space conditioning, such as a walk-in cooler. In addition to high-technology refrigeration equipment, a variety of supplemental refrigeration technologies are available to reduce energy costs. Well water-cooled plate heat exchangers can be used to pre cool the milk before it enters the bulk tank.