The answer: 3, 2 ,1, 4.
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Start with: 3) plaque; then, 2) enamel decay; then, 1) dentin decay;
then, 4) pulp decay.
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Copper oxide is a compound :) hope this helps.
If your getting an iv of pure water and it goes into your veins their is a possibility it would lead to death.
All of the health workers
Either side to side hair or short hair like other boys do get