741: The major chemical compound found in human kidney stones is
(a) Uric acid
(b) Calcium carbonate
(c) Calcium oxalate
(d) Calcium sulphate
742: With reference to the wetlands of India, consider the following statements :
1. The country's total geographical area under the category of wetlands is recorded more in Gujarat as compared to other States.
2. In India, the total geographical area of coastal wetlands is larger than that of inland wetlands.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
743: Consider the following schemes launched by the Union Government :
I. Antyodaya Anna
II. Gram Sadak Yojana
III. Sarvapriya
IV. Jawahar Gram Samriddhi Yojana.
Which of these were announced in the year 2000 ?
(a) I and II
(b) II and IV
(c) III and IV
(d) I, II and III
744: What does Baudhayan theorem (Baudltayan Sulva sutra) relate to ?
(a) Lengths of sides of a right-angled triangle
(b) Calculation of the value of pi
(c) Logarithm calculations
(d) Normal distribution curve
745: A small wooden block is floating in a tub of water. The water is gradually heated. The volume of the wooden block visible above the water level:
(a) Increases
(b) Decreases
(c) Fluctuates
(d) Remains the same