Name the kind of light that can kill germs.
Answers
Answer:
The kind of light that can kill germs is Ultraviolet Light.
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Explanation:
New research shows that sunlight kills potentially harmful bacteria and improves air quality in indoor environments.
Researchers from the University of Oregon built 11 climate-controlled miniature rooms to reconstruct the atmospheres of homes or office buildings. The goal of the experiment was to study the effect that regular sunlight, ultraviolet (UV) light, and no light have on a room’s microbiome, or the mix of bacteria that exists in any environment.
The authors of the study published last month collected dust from homes and then seeded each of the dollhouse-sized rooms with this residential dust.
They left the rooms outside in sunlight while maintaining typical indoor temperatures inside the rooms for 90 days.
After the three months, the authors collected dust samples from each of the 11 rooms and looked at the amount and viability (the ability to reproduce) of the dust that remained.
In the rooms that had no light, 12 percent of bacteria remained alive and viable. In the rooms that were exposed to daylight, 6.8 percent of bacteria were viable — almost half that of the dark rooms.
Rooms exposed to UV light had slightly less live bacteria than the rooms exposed to sunlight; 6.1 percent of bacteria in these rooms were still viable 90 days after the start of the experiment.