3206: With reference to soil conservation, consider the following practices :
1. Crop rotation
2. Sand fences
3. Terracing
4. Wind breaks
Which of the above are considered appropriate methods for soil conservation in India ?
(a) 1, 2 and 3 only
(b) 2 and 4 only
(c) 1, 3 and 4 only
(d) 1, 2, 3 and 4
3207: Which one of the following statements regarding starch and cellulose is not correct ?
(a) Both of them are of plant origin
(b) Both of them are polymers
(c) Both of them give colour with iodine
(d) Both of them are made up of glucose molecules
3208: The Brahmaputra, Irrawady and Mekong rivers originate in Tibet and flow it through narrow and parallel mountain ranges in their upper reaches. Of these rivers, Brahmaputra makes a "U" turn in its course to flow into India. This "U" turn is due to
(a) Uplift of folded Himalayan series
(b) Syntaxial bending of geologically young Himalayas
(c) Geo-tectonic disturbance in the tertiary folded mountain chains
(d) Both (a) and (b) above
3209: Which one of the following is a feature common to both the Indian Federation and the American Federation?
(a) A single citizenship
(b) Three lists in the Constitution
(c) Dual judiciary
(d) A federal Supreme Court to interpret the constitution
3210: Examine the following :
Ashok is older than Suresh. Raju is older than Ashok and Vivek is not older than Suresh, Which one of the following statements must necessarily be true?
I. Vivek is as old as Ashok
II. Vivek is as old as Raju
III. Vivek is as old as Suresh
IV. Suresh is younger to Vivek
(a) Only I
(b) Only II
(c) Only III
(d) Either III or IV