Q1. The Sun is a

Q2. The average adult has a blood volume of about __________ liters.

Q3. The most abundant element in the universe is

Q4. The most abundant element in the Earth‘s crust is

Q5. Each day human body breathe in __________ liters of air.

Q6. Deficiency of Vitamin D results in

Q7. The SI unit of pressure is

Q8. The most densest substance on the Earth is

Q9. A camera uses a __________ to form an image.

Q10. Which from the following is NOT a conductor?

Q11. CNG stands for?

Q12. Which from the following is true for Sound?

Q13. When white light is passed through a prism, it splits into __________ colours.

Q14. 1 nanometer =?

Q15. Instrument used for measuring very high temperature is

Q16. Sound waves are _________ waves.

Q17. The lifespan of White Blood Cells is __________ day(s).

Q18. The fluid part of blood is known as

Q19. X-rays were discovered by

Q20. The speed of light is

Q21. During winter in cold countries, the __________ is mixed to melt the ice on the icy roads.

Q22. In a very low temperature which from the following will freeze at last?

Q23. The nearest planet to the Earth is

Q24. The planet that moves round the Sun at the highest speed is?

Q25. In general, Comets have __________ orbits.