The whole sentence is written as:
Alcohol is a very common substance, which is surprising considering its many harmful effects.
From the sentence, the dependent clause would be "which is surprising considering its many harmful effects." The dependent clause is a part of a sentence which is not understandable without the whole sentence.
A) each side of the equations is divided by the number of moles.
Answer is: myrmecologist.
Myrmecology <span>is a branch of </span>entomology<span> focusing on the </span>scientific<span> study of </span>ants<span>.
</span>Ants are model for the study of questions on the evolution of social systems because of their complex and varied forms of eusociality<span>.
</span>Red ants (fire ant)<span> are the </span>common name<span> for several species of ants in the </span>genus Solenopsis<span>.</span>