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of its brightness. C. Question: How does the addition of calcium to chicken's diet affect the hardness of eggshells? Hypothesis: Adding calcium to chicken's food is going to make the eggshells firmer. Independent variable:​

User Sharda
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Answer:

it affects the hardness of the shells because calcium has a high reactivity which causes the shell to be hard

Step-by-step explanation:

User Yalamandarao
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