Examine the following list of questions.
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?
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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.

Im is in a crowd of people at the mall looking for his girlfriend tammy, who was supposed to meet him for dinner. jim realizes tammy is across the room as he catches a whiff of her overpowering perfume, 'paris #6'. which process explains why jim is able to smell the perfume?

What percentage of light hits earth's surface directly?

The kidney filters potentially toxic substances in the blood, and thus “clears” the blood of those substances. this clearance function is dependent upon and proportional to the diffusion gradient of the substance across filtering capillaries, i.e. if the concentration of the substance is doubled, twice as much will be cleared from each ml of blood that is filtered. suppose that the body produces a constant amount of a substance x per unit of time. the kidneys eliminate substance x at a rate directly proportional to the concentration of the substance and the volume of blood cleared each minute (c): elimination = c × [x], where [x] is the steady-state concentration of substance x. imagine an individual with an initial concentration of x equal to [x]0 who develops kidney disease. her baseline clearance c0 drops to one half of the original (½c0). what is the new steady state concentration of x? (for simplicity, assume that substance x is 100% filtered by the kidney).