It was about 1597. Hope this helps. :)
Answer: Yes it is very safe. Just make sure that no one is allergic to it, because if so they may go into a sever allergic reaction. Other then that you should be good. Please give me the brainiest answer? Hope this helped :)
Answer:
As the frequency decreases, you hear a lower pitch
Explanation:
The lower the frequency, the lower the pitch.
