861. Which of the toxic heavy metals is found in modern tannery industries?
Chromium
862. Which was the most important kingdom after the Maury in the-Deccan and Central India?
Satavahanas
863. In which year did Mahatma Gandhi enter into freedom struggle in India?
1917
864. By whom was the famous ‘Kirti Stambha’ at Chittor built?
Rana Kumbha
865. Which civilization is considered to be the world's first urban civilisation ?
Mesopotamian civilization
866. Which book was written by Gandhiji?
My Experiments with Truth
867. Who is the author of War of Indian Independence ?
Vir Savarkar
868. The Indian research station Himadri is located at which place?
Antarctica
869. Who is the author of “ Chameen “?
Thakazhi Siva Sankara Pillai
870. The district with least number of post offices in Kerala is?
Wayanad