Answer:
PERIODS
Explanation:
As with any grid, the periodic table has rows running left to right, and columns running up and down. The rows are called PERIODS and the columns are called GROUPS.
••.•´¯`•.•• ••.•`¯´•.••
Answer: The answer is B! Thanks for letting me answer!! Hoped this help you!
<span>Backup sewage in the operation's storeroom is considered to be a contamination risk.
</span><span>You should first contact the local regulatory authority </span><span>and close the store to prevent customers from becoming sick.
Second, call a plumber or someone who can correct the cause of the backup.
Lastly, clean the area to prevent fecal contamination.</span>
Nail bitting is a unhealthy habit because you're damaging your nails and plus there is so much bacteria under them. How you could stop it is put a rubber band around your wrist and snap it every time you feel like bitting them? Haha idk.
Carbon Monoxide.
- It is dangerous because carbon monoxide has a higher affinity for hemoglobin than oxygen does. Your body cannot use carbon monoxide to make ATP, so if there is carbon monoxide attached to hemoglobin instead or oxygen you cannot oxygenate your cells. Thus they will die.
