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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Answer:
The answer is A- spongy bone
Explanation:
Split the chips into, say, eight servings. You can eat a serving a day. Therefore you'll only be getting 80 calories a day from junk food. I hope I helped! :)