General Knowledge (GK) Questions and Answers

1. Q. Why is milk white in color?
   Ans. Casein
2. Q. Why is blood red in color?
   Ans. Hemoglobin
3. Q. Why are leaves green in color?
   Ans. Chlorophyll
4. Q. Why is turmeric yellow in color?
   Ans. Curcumin
5. Q. Why does the sky appear black in outer space?
   Ans. Absence of atmosphere
6. Q. Why is lightning seen as white light?
   Ans. High-energy electrons
7. Q. Why is water colorless? (The original question appeared to contain a typo.)
   Ans. Due to complete transmission and minimal absorption of visible light.
8. Q. Why is glass transparent?
   Ans. Because it allows light to pass through it.
9. Q. Additional question hidden in the source due to a pop-up overlay.
   Ans. Information not visible.