816: While delivering the presidential address, the Congress President who advocated the introduction of Roman script for Hindi language was
(a) Mahatma Gandhi
(b) Jawaharlal Nehru
(c) Abul Kalam Azad
(d) Subhas Chandra Bose
817: Which one of the following was the cause of disintegration of the Mughal Empire?
(a) War of succession among sons of Aurangzeb
(b) Attacks of Nadir Shah and Ahmad Shah Abdali
(c) Revolts of various communities like Jats, Sikhs, Rajputs, etc.
(d) All of the above mentioned factors contributed to the downfall of the Mughal Empire
818: Which one of the following is another name of RDX ?
(a) Selenium
(b) Cyclonite
(c) Cyanohydrin
(d) Cyclohexane
819: Two important rivers - one with its source in Jharkhand (and known by a different name in Odisha), and another with its source in Odisha - merge at a place only a short distance from the coast of Bay of Bengal before flowing into the sea. This is an important site of wildlife and biodiversity and a protected area.
Which one of the following could be this?
(a) Chandipur-on-sea
(b) Gopalpur-on-sea
(c) Bhitarkanika
(d) Simlipal
820: The most poisonous snakes found in India are
(a) Cobra, Viper, Banded kraits
(b) King Cobra, Grass snake, Banded kraits, Cobra
(c) Cobra, Python, Banded kraits, Rat snake
(d) Cobra, Grass snake, Kraits, Rat snake