× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
g
3
3
2
J
2
p
2
m
2
h
2
s
2
r
2
d
2
l
2
a
2
Home Q & A Board Science-Related Homework Help Health, Nutrition, and Food Sciences
New Topic  
vankor vankor
wrote...
Go to Answer
Posts: 569
Rep: 0 0
6 years ago
Which of the following is TRUE with respect to cell phone use and radiation exposure?
 
  A) Radiation from cell phones cannot penetrate the head.
  B) Cell phone use releases radio-frequency electromagnetic radiation.
  C) Long-term studies have proven that cell phone use is entirely risk-free.
  D) The smaller the device, the greater the level of exposure.


What percentage of the radiation to which we are exposed is due to medical and dental procedures?
 
  A) 15 percent
  B) 25 percent
  C) 35 percent
  D) 45 percent


Within what range of radiation exposure do symptoms of sickness begin to appear?
 
  A) 50 to 100 rads
  B) 100 to 200 rads
  C) 200 to 300 rads
  D) 300 to 400 rads


The sun's high-frequency ultraviolet rays and medical and dental x-rays are examples of which type of radiation?
 
  A) Nonionizing
  B) Ionizing
  C) Alpha wave
  D) Microwave


The percentage of trash that could potentially be recycled in the United States is estimated to be as much as
 
  A) 60 percent.
  B) 70 percent.
  C) 80 percent.
  D) 90 percent.
Read 637 times
3 Replies
Replies
Answer verified by a subject expert
TurtleTurtle
wrote...
#1
Top Poster
Posts: 797
Rep: 8 0
6 years ago
Sign in or Sign up in seconds to unlock everything for free

Related Topics

vankor Author
wrote...
#2
6 years ago
Cheers!!
wrote...
#3
2 years ago
thanks
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1089 People Browsing
 130 Signed Up Today
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 1664
  
 68
  
 2279
Your Opinion
How often do you eat-out per week?
Votes: 79
Previous poll results: Do you trust social media networks with protecting your privacy?