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Why do researchers worry about alternative explanations when stating a causal relationship?
Electrons
Negatively charged subatomic particles with a very small mass, found orbiting the nucleus of an atom.
Oxygen
A chemical element with symbol O, essential for respiration in many organisms and important in various industrial processes.
Isotopes
Forms of the same chemical element that have different numbers of neutrons, leading to variations in their total number of nucleons.
Neutrons
Subatomic particles found in the nucleus of an atom, carrying no electric charge and having a mass slightly larger than that of a proton.
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