easy · GMAT Verbal
Vertical farms grow crops indoors on stacked shelves lit by LEDs, using far less water and land than open fields. However, replacing sunlight with LEDs requires continuous electricity, and for many crops the cost of that electricity exceeds the combined value of the water and land the method saves.
Which of the following can be properly inferred from these statements?
- Vertical farming uses more water than field agriculture.
- For some crops, electricity costs exceed the savings on water and land combined.
- Vertical farming will replace field agriculture within a decade.
- LEDs are the most expensive component of any vertical farm.
- Field agriculture wastes land that vertical farming would always put to better use.
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