Answer: "analogous" .
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The answer would be D. Precognitive psychology
The atomic number of a neutral atom is equal to the number of protons and the number of electrons of the atom. The atomic weight meanwhile is equal to the sum of the number of protons and number of neutrons. An element has a unique atomic number. Hence the answer shoulf be B. number of protons
B.) Wells since the purpose of wells is to retrieve water from underground
It could affect the sea and the land