1846: When a ship enters a sea from a river, its portion under water will:
(a) Increase
(b) Decrease
(c) Show no change
(d) Increase and decrease alternately
1847: Many transplanted seedlings do not grow because
(a) the new soil does not contain favourable minerals
(b) most of the root hairs grip the new soil too hard
(c) most of the root hairs are lost during transplantation
(d) leaves get damaged during transplantation
1848: Consider the following statements:
1. The axis of the earth's magnetic field is inclined at 23 1/2 degree to the geographic axis of the earth.
2. The earth's magnetic pole in the northern hemisphere is located on a peninsula in northern Canada.
3. Earth's magnetic equator passes through Thumba in South India.
Which of the following statements given above is/are correct?
(a) 2 only
(b) 3 only
(c) 2 and 3
(d) 1, 2 and 3
1849: Which of the following is correct about the Chief Election Commissioner?
He holds the office till he attains the age of
(a) 62 years
(b) 65 years
(c) 62 years or completes 3 years of service, whichever is earlier
(d) 65 years of age or completes 5 years of service, whichever is earlier
1850: The stones formed in human kidney consist mostly of
(a) calcium oxalate
(b) sodium acetate
(c) magnesium sulphate
(d) calcium