4596: Which of the following pairs is/are correct?
(A) Main root : Storage
(B) Lateral root : Absorption
(C) Root hair : Conduction
(a) Only A
(b) A and C
(c) All are correct
(d) None of the above
4597: 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
4598: Assertion (A):
The Congress rejected the Cripps proposals.
Reason (R):
The Cripps Mission consisted solely of whites.
(a) Both A and R are true, and R is the correct explanation of A
(b) Both A and R are true, but R is NOT a correct explanation of A
(c) A is true, but R is false
(d) A is false, but R is true
4599: The drugs "caffeine, tannin and nicotine" are:
(a) Steroids
(b) Cortisones
(c) Alkaloids
(d) Mild alkalis
4600: In an accurate clock, on a period of 2 hours 20 minutes, the minute hand will move over
(a) 520°
(b) 320°
(c) 840°
(d) 140°