1. why are kids afraid of ghosts? 2. should i feed the raccoons that visit my trash can? 3. how does mouse color affect mouse survival? 4. does a mother duck love her babies? which statement correctly identifies the scientific question and describes why the question is scientific? question 1 refers to the supernatural. question 2 reflects a moral or social value. question 3 refers to something that can be measured. question 4 reflects a question that can’t be observed.

The answer would be:

Question 3 refers to something that can be measured.

If you'd like to know why, please read on:

A scientific question is a question that can lead to a hypothesis.  A question is considered scientific if one can design an investigation to answer the question. To put it simply, you can answer the question through testing and experimentation. These type of questions are based on scientific ideas, thus supernatural, morality, opinions and the like are not considered scientific because they are not observable.

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explanation:

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the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.