531. When chlorophyll absorbs light, what does it gets excited and emits?
Electrons
532. Who stated that there was no slavery in India ?
Megasthenes
533. Which King of Travancore opened the First modern factory for the manufacture of coir at Alleppey (1859)?
Utram Thirunal Marthanda Varma.
534. During the Indian Freedom struggle, who started a journal “The Indian Sociologist” ?
Shyamji Krishna Varma
535. Who, was the Nanda ruler at the time of Alexander"s invasion?
Dhana Nanda
536. College of Satellite Communication Technology is located at?
Ahmedabad (Gujarat).
537. Great Depression of 1990 was written by ?
Ravi Batra
538. Uranium eventually decays into a stable isotope of element?
Lead
539. Who is the author of “Glimpses of World History”?
Jawaharlal Nehru
540. Where are Grasses almost absent?
In tropical wet-evergreen forest