Sagot :
Answer:
1. True - Radiofrequency ablation (RFA) uses heat made by radio waves to kill cancer cells. Radiofrequency is a type of electrical energy. Ablation means destroying completely.
2.True - A type of ultraviolet light called ultraviolet light C or UVC is helping hospitals cut transmission of super bugs like MRSA that linger in patient rooms and cause new infections, according to a study by Duke Health researchers.
3.False
4.True - Another sterilization-by-heating technique uses infrared to kill microorganisms in a few seconds using temperatures up to 1500°F/815°C. On the chemical front, hydrogen peroxide can break down cellular tissue.
5.True - In physics, electromagnetic radiation (EM radiation or EMR) refers to the waves (or their quanta, photons) of the electromagnetic field, propagating (radiating) through space, carrying electromagnetic radiant energy. It includes radio waves, microwaves, infrared, (visible) light, ultraviolet, X-rays, and gamma rays.