3 10.The newly-invented cell-phones emit large amounts of radiation.This is why they ___ disapproval from experts as soon as they are on sale.( ) A. came across B. met with C. set aside D. turned up 4 The newly-invented cell-phones emit large amounts of radiation. This is ...
Cell phones emit a type ofradiationreferred to as nonionizing radiation, which is a low-energy radiation that may or may not harm the brain in the long run. The International Agency for Research onCancer(IARC) has therefore classified radiofrequency (RF) radiation as a “possible human carcino...
A 2018 studyfoundthat mobile phones emit electromagnetic radiation in the frequency range of 880 to 2200 Hertz, which can be absorbed by the human body. That study also found that men who talk on the phone when a battery is charging have a higher-than-normal (66%) sperm concentration — ...
Cell phones emit radiofrequency energy, a type of radiation that is a form of electromagnetic radiation, according to the National Cancer Institute. Though studies are being done to see if there is a link between it and tumors of the brain and central nervous system, there is no definitive l...
10.The newly-invented cell-phones emit large amounts of radiation.This is why they disapproval from experts as soon as they are on sale.( )A.came acrossB.met withC.set asideD.turned up
题目【题目】T he newly-invented cell-phones emit large amounts of radiation. T his is why theydisapproval from experts as soon asthey are on sale.A. came acB . met wit C . set asidD . turnedeup 相关知识点: 试题来源: 解析 B 反馈 收藏 ...
Cell phones are handy. Who’snotgot a mobile phone these days? In fact, according to the World Bank, three quarters of people on the planet have a cell phone! But here’s the thing… cell phones emit a type of electromagnetic field (EMF) called radio frequency radiation or microwave rad...
Cell phones — in fact, all electronics — give off energy waves known as electromagnetic radiation. EMR is divided into various subsets based on frequencies. For example, radio waves, the kind cell phones emit, have the lowest frequencies. Meanwhile, the ones with the highest frequencies, like...
Moreover, other research shows that the transientpeakpower of very short exposures to microwave radiation that cell phones emit could be far more damaging to tissues than much longer exposures to low peak power cell phone emissions.[6]
“The very linear relationship between cell phone usage and brain tumor incidence is disturbing and certainly needs further epidemiological evaluation,“ concluded a U.S. Study on Cell Phones and Brain Tumors. Fact:Cell phones emit microwave radio-frequency radiation. ...