A scientist is designing an investigation to study the impact of increased hunting on the white tail deer population in central Wisconsin. What is the most likely outcome variable (dependent variable)?

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the answer is the first electromagnet (a). this is because it has more coils around the ferromagnetic material. increasing the number of coils increases the surface area in which the metal interacts with the current in the coil. this enables more atoms in the metal to become aligned hence becoming more magnetized.