Answer:
Elements are pure substances with only one type of atom.
Explanation:
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In chemistry, yes...yes it is.
The answer you need is B. Pollution. Have in mind that Caves contain carvings and depictions that are formed from acids running through the limestones of the cave. The sulfuric acid that helped form the Lechugilla caves come from pollution.I hope this info can help you
The definition of atomic structure is the positively charged nucleus and the negatively charged electrons circling around it, within an atom.