Why is the pupil of the human eye black?
Correct answer: C. The pupil is a hole that allows light to enter, and it appears black because the light is absorbed or scattered inside the eye.
- A. The pupil appears black because it is made of dark-colored tissues.
- B. The pupil can appear in different colors depending on the light conditions.
- C. The pupil is a hole that allows light to enter, and it appears black because the light is absorbed or scattered inside the eye.
- D. The vitreous humor behind the pupil is black, causing the pupil to appear black.
Explanation
The pupil is an opening in the center of the eye's iris that allows light to enter and reach the retina. It appears black because the light that enters is absorbed by the retina or scattered inside the eye, making it difficult for the light to escape back out through the pupil. This absorption and scattering of light give the pupil its characteristic black appearance. The other options are incorrect because they either misidentify the nature of the pupil or suggest incorrect reasons for its appearance.
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About Scientific Reasoning
Scientific reasoning evaluates hypotheses through observations, variables, controls, measurements and experimental results. Questions involve identifying independent and dependent variables, recognising a fair test, interpreting tables or graphs, distinguishing evidence from opinion, and deciding whether data supports, rejects or leaves a hypothesis unresolved.
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