![subject](/tpl/images/cats/biologiya.png)
Biology, 01.03.2021 09:10 caro11377oxq5d0
Directions: Write the word TRUE if the statement is correct and if not, underline the word or statement incorrect and correct answer on the space provided.
write
1. All x-ray are dangerous because they can damage healthy living cells of the body.
2. Ultraviolet in sunlight radiation produces vitamin D in the skin and gives us tanning effect
3. Microwaves can penetrate the atmosphere of the earth.
4. Radio wave used to transmit sound and picture information over long distance.
5. Infrared wave also damage cells, causing mutation.
6. Gamma rays is absorbed by water molecules, so it can be used for cooking.
7. Over-exposure to UV radiation may cause skin cancer.
8. Low frequency waves are suitable for communication over great distances.
9. Most EM waves are visible to the eye of humans and animals.
10. Visible light are used by banks to check the signature on a passbook.
Modified True or False.
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Other questions on the subject: Biology
![image](/tpl/images/cats/biologiya.png)
Biology, 21.06.2019 14:30, Franklyn3220
Why are small quantities of chlorofluorocarbons so harmful to the ozone layer? a. the chlorofluorocarbons act like ultraviolet radiation causing large amount of ozone to be produced. b. the chlorine from the chlorofluorocarbons reacts with free molecules of oxygen causing a stop in ozone production c. free oxygen atoms can replace the chlorine in chlorine monoxide, releasing a free atom of chlorine which can then recombine with an oxygen atom in ozone, destroying more ozone. d. chlorofluorocarbons absorb ultraviolet radiation, preventing the formation of ozone select the best answer from the choices provided
Answers: 1
![image](/tpl/images/cats/biologiya.png)
![image](/tpl/images/cats/biologiya.png)
![image](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 02:00, aleklupo3353
What is the difference between an igneous, sedimentary and metamorphic rock
Answers: 1
You know the right answer?
Directions: Write the word TRUE if the statement is correct and if not, underline the word or statem...
Questions in other subjects:
![Konu](/tpl/images/cats/mat.png)
Mathematics, 03.02.2020 13:53
![Konu](/tpl/images/cats/istoriya.png)
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 03.02.2020 13:53
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/es.png)
Spanish, 03.02.2020 13:53
![Konu](/tpl/images/cats/mat.png)
Mathematics, 03.02.2020 13:53
![Konu](/tpl/images/cats/en.png)
English, 03.02.2020 13:53
![Konu](/tpl/images/cats/istoriya.png)
History, 03.02.2020 13:53