<span> The </span>most specific classification<span> is by genus and </span>species<span>. The hierarchical groupings in between include phylum, class, family, and order...... :)
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16 neutrons are present in the most abundant isotope.
Explanation:
Phosphorus has 18 isotopes. The most common isotope has mass number (no. of protons 15+ no. of neutrons 16=) 31 .
The answer is D. The surface area of rocks decreases because of acid rain
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