2576: With reference to the scientific progress of ancient India, which of the statements given below are correct?
1. Different kinds of specialized surgical instruments were in common use by 1st century AD.
2. Transplant of internal organs in the human body had begun by the beginning of 3rd century AD.
3. The concept of sine of an angle was known in 5th century AD.
4. The concept of cyclic quadrilaterals was known in 7th century AD.
Select the correct answer using the codes given below :
(a) 1 and 2 only
(b) 3 and 4 only
(c) 1, 3 and 4 only
(d) 1, 2, 3 and 4
2577: Consider the following statements:
1. The Election Commission of India is a five-member body.
2. Union Ministry of Home Affairs decides the election schedule for the conduct of both general elections and by-elections.
3. Election Commission resolves the disputes relating to splits/mergers of recognized political parties.
Which of the statements given above is/are correct?
(a) 1 and 2 only
(b) 2 only
(c) 2 and 3 only
(d) 3 only
2578: Which soil is best suited for paddy crop?
(a) Black soil
(b) Loamy soil
(c) Hard soil
(d) Red soil
2579: In which one of the following places the boiling point of water is the highest?
(a) Dead Sea
(b) Mt. Everest
(c) Nile delta
(d) Sunderban delta
2580: Ram Singh gives half of his cash reserves to his wife, one half of the remaining to his son and one third of the remaining to his daughter. If his daughter's share is Rs. 12,500, then the total cash reserves with Ram Singh were
(a) Rs. 21,500
(b) Rs. 75,000
(c) Rs. 1,00,000
(d) Rs. 1,50,000