Answer:
Answer would be no.
B)carbon, hydrogen and oxygen
Shells are considered biotic because they come from living things. Biotic describes something living or use to be living such as plants and animals. So shells are considered biotic because they come from a living organism.
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Hope that helped:)
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Nitrogen gas is most commonly found in which earths sphere?a. Biosphere
b. Exosphere
c. Atmosphere
d. Hydrosphere
The answer is a the first one.