Answer: a word (other than a pronoun) used to identify any of a class of people, places, or things ( common noun ), or to name a particular one of these ( proper noun ).
-definition from G0ogle
Explanation:
If earth was not a connecting system then the heat from its interior wouldn’t have effect on the tectonic plate at all. The heat from the interior causes the tectonic plates to shift, which effects the oceans sea floor and does cause volcanos to be created.
Answer:
you have to post the passage so we could answer the question.
It just happened like that