1546: Of the four landmarks in medical history given below, which one was the first to take place ?
(a) Organ transplant
(b) Bypass surgery
(c) Test-tube baby
(d) Plastic surgery
1547: Consider the following statemtns:
1. Total land area of Earth is approximately 1475 lakh square kilometers.
2. Ratio of land area to water area of Earth is approximately 1 : 4.
3. Maximum percentage of Earth's water is in the Pacific Ocean.
Which of the following statements given above is/are correct?
(a) 1 only
(b) 3 only
(c) 2 and 3
(d) 1 and 3
1548: Lord Cornwallis introduced:
(a) Zamindari system
(b) Mahalwari system
(c) Mansabdari system
(d) None of the above
1549: Which one of the following statements is not true ?
(a) Ghaggar's water is utilised in the Indira Gandhi Canal
(b) Narmada rises from Amarkantak region
(c) Nizam Sagar is situated on the Manjra river
(d) Penganga is a tributary of the Godavari
1550: Musical instrument used by Amir Khusro was:
(a) Sitar
(b) Sarod
(c) Tabla
(d) Flute