2491. The removal of rock; layer by layer due to weathering what is called?
Exfoliation
2492. Who is the author of “KilivathiIiloode”?
Lalitham bika Antharjenam
2493. Who is the author of “The Road Ahead”?
Bill Gates
2494. What are species containing same number of electrons called?
Isoelectronic
2495. Moon shaped sand-dunes; formed by which wind action?
Barkhans
2496. What is the most important function of perspiration?
To regulate body temperature
2497. Which alloy is used for making magnets for hearing aids?
Alinco
2498. Who is the author of “Social Contract”?
Rousseau
2499. Which are the regions with the highest and lowest densities respectively?
Europe and Oceania
2500. Who sings on One-rupee currency notes?
Finance Secretary of India