A black coat appears black because it absorbs all the wavelengths of visual light that fall on it and no light is reflected into the eye from that object.
Answer:
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Explanation:
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Diseases that vaccines prevent can be dangerous, or even deadly. Vaccines greatly reduce the risk of infection by working with the body's natural defenses to safely develop immunity to disease.
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Answer:
Because iron deficiency occurs when a person has a poor diet or doesn't eat enough and obesity is also the outcome of a poor diet if a child is eating to much food and not enough exercise.
So basically they aren't eating right so the child isn't healthy and could lead to other problems like not able to heal even small things like a scratch very well with a poor diet.
Explanation:
