2431: Banjaras during the medieval period of Indian history were generally
(a) agriculturists
(b) warriors
(c) weavers
(d) traders
2432: Recently, Scientists observed the merger of giant blackholes billions of light-years away from the Earth. What is the significance of this observation?
(a) 'Higgs boson particles' were detected.
(b) 'Gravitational waves' were detected.
(c) Possibility of inter-galactic space travel through 'wormhole' was confirmed.
(d) It enabled the scientists to understand 'singularity'.
2433: The satellites of which one of the following countries have helped in the preparation of a detailed and complete map of Antarctica ?
(a) Canada
(b) France
(c) Russia
(d) USA
2434: Under the Constitution of India, which one of the following is not a fundamental duty?
(a) To safeguard public property
(b) To abide by the Constitution and respect its ideals
(c) To vote in public elections
(d) To develop the scientific temper
2435: Assertion
Carbon dioxide in air is necessary for sustaining life
Reason
Carbon dioxide is assimilated in carbohydrates in photosynthesis
(a) if A and R both are correct and R is the correct explanation of A
(b) if A and R both are correct but R is not the correct explanation of A
(c) if A is correct and R is incorrect
(d) if A is incorrect and R is correct