Ignorance- lack of knowledge or information.
A) The teenager that doesn't exercise because he/she doesn't know that he needs. Meaning that he/she is being ignorant because he/she doesn't know that they need it to stay healthy.
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Be Constructed Or Coated in an unknown substance.
Typical symptoms of people with cancer include sores that do not heal, recent change in a wart or mole, and thickenings or lumps in an area of the body. Symptoms of cancer may also have link in resistance to insulin and onset of a gluten allergy, but these are not common suggestions of cancer.