name the type of compounds which are used as refrigerant and in fire extinguisher and deplete the ozone layer?
Smoke detectors will chirp for months. The reason detectors use 9v batteries (square ones) is they loose voltage very slowly. Detectors are designed to chirp when voltage drops below 6 volts. The reasoning is they will still be able to provide protection and give the owner a reasonable amount of time to replace the battery. So if you start with 9 volts and it starts chirping at 5.9 volts figure the time it took to get to below 6 volts Probably a year. So you should have somewhere near a year left before the battery completely drains although I would replace it fairly soon since the chirping can drive you nuts. Regular maintenance staff should be able to replace the battery if they have access to the room and they handle replacing batteries. If the detector is going off full bore exit the building and call 911.
wellit looks like an earring that is in your nose.
Wow, yours is a very nice image, I like it. However for me, it would be being on a warm tropical beach, just the two of us on a beach towel under the stars, a warm breeze rustling in the palm fronds, little waves on the shore, the air scented by sweet ginger and plumeria blossoms.
I have my nose pierced and when I take the jewelry out and leave it for a few days, you cant even see that I ever had a piercing there. There might be a small hole but it'll be virtually unnoticeable, unless someone is staring at your face or actually looking for it.
