4 Answers 4. active oldest votes. up vote 11 down vote. If it is sealed in an air tight container and the freezer always stays very cold so the meat never thaws-then chicken and beef will stay good indefinitely.
1 When sewer gases diffuse into household air, they gradually displace oxygen and suffocate occupants. 2  The effects of oxygen deficiency include headache, nausea, dizziness and unconsciousness. 3  At very low oxygen concentrations (less than 12%), unconsciousness and death will occur quickly and without warning.
1 Nitrous oxide (also called laughing gas). 2  This gas, which is inhaled by the patient through a rubber face mask, helps people feel relaxed and is one of the most common forms of sedation used in the dental office. 3  Effects wear off quickly after the gas is turned off. The patient is able to drive and resume normal activities immediately following the dental visit. 2  Nitrous oxide (also called laughing gas). 3  This gas, which is inhaled by the patient through a rubber face mask, helps people feel relaxed and is one of the most common forms of sedation used in the dental office.