I want to tell you about vertical farms. Vertical farming was invented by scientists. I think it's a good idea, because it saves space, as is impossible to place a lot of vegetables or fruit in small areas. It's very convinient to take care of. To find alternative ways to obtain more agricultural land has been a real challenge for scientists. Plants are susceptible to invasions by small parasitic insects. These farms can be a solution for people whose land is barren. Any person in society can make a small farm on the balcony. The plants will be fed with direct sunlight. Large farms are equipped with air turbines.