Do you have any options for answers? And are you asking for an emotional defense mechanism or a physical defense mechanism?
Answer:
The condition of shelters can be evaluated based on wear of the protective PVC bag. The 1-page guide in this tech tip has all the information firefighters need to inspect fire shelters and determine whether to continue carrying them as they are, to rebag them, or to take them out of service.
Explanation:
Answer:
Noble gases fall in 1 group Because their valences are 0.
Another one can be halogens which have valences 1.
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