Can similar mineral composition be found in rocks both the Rocky Mountains and the Great Plains even though the rocks look so different

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The proton has a positive charge while the neutron has no charge they both make up the nucleus of the atom while the elections have a negative charge and surround the nucleus of the atom. the protons and electrons are used to calculate the atom's mass whereas the neutrons don't affect the mass

Ithink the answer is c. i’m not sure though i’ll notify you when i have an exact answer!