26: In the context of modern scientific research, consider the following statements about 'Ice Cube', a particle detector located at South Pole, which was recently in the news:
1. It is the world's largest neutrino detector, encompassing a cubic kilometre of ice.
2. It is a powerful telescope to search for dark matter.
3. It is buried deep in the ice.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
27: A universal donor has the blood group belonging to:
(a) A
(b) B
(c) O
(d) AB
28: Who among the following Indians mostly encouraged the remarriage of the widows?
(a) jaisingh
(b) Ahilya Bai
(c) Sarfoji
(d) Raja Ram Mohan Roy
29: What are the benefits of implementing the Integrated Watershed Development Programme?
1. Prevention of soil runoff
2. Linking the countrys perennial rivers with seasonal rivers
3. Rainwater harvesting and recharge of groundwater table.
4. Regeneration of natural vegetation.
Select the correct answer using the code given below :
(a) 1 and 2 only
(b) 2, 3 and 4 only
(c) 1, 3 and 4 only
(d) 1, 2, 3 and 4
30: Constitution does not recognise the caste system because:
(a) India is secular
(b) It leads to inequality which is against the Constitution
(c) It leads to untouchability
(d) All of the above