Which element provides strength to the exoskeletons of clams and oysters?
sulfur
oxygen
hydrogen
phosphorus
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Answer:
your answer is phosphorous
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1
Answer:
Option D i.e. Phosphorus is the right answer.
It is a highly reactive element and thus never found on earth as a free element.
The shell has calcium carbonate which is the prima compositional compound in it.
This calcium carbonate is also strengthened by phosphorus.
Thus, phosphorus invariably strengthens the exoskeletons of clams and oysters
Explanation:
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