Answer:
https://www.mskcc.org/news/do-cell-phones-cause
Explanation:
Here is a link you can use.
Salt+ water high salt concentration . it is becoming blood pressure
Answer: The bacteria uses the oxygen present in the mouth.
Explanation:
The plaque that is formed in the teeth is a highly anaerobic bacteria but it can sustain in the environment rich in oxygen. The oxygen is used by the bacteria and there is a absence of oxygen in the teeth.
It is formed in between the teeth which needs oxygen to survive and if remains for tooth for a longer period of time then it began to grow without oxygen.
It basically uses the oxygen available in the mouth and makes the condition anaerobic.
Question 5 is all of the above question 6 is bases that are found on dna question 7 is the one on the top