Differentiate between Mesozoic era and Cenozoic era on the basis of time scale and origin of species.​

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

The answer is c the potato slice shriveled because water moved out of the slice into the salt solution

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