3421: Consider the following statements regarding bones in the human body :

1. They consist of 80% solid matter and 20% water.

2. Solid matter in the bones is made mainly of cartilage.

3. Impregnation of salts including carbonates and phosphates of lime imparts hardness to the bones.

4. In old age, the proportion of lime decreases and bones become brittle and break easily.

Of these statements :

(a) 1, 2 and 3 are correct

(b) 2 and 4 are correct

(c) 2 and 3 are correct

(d) 1, 2, 3 and 4 are correct
3422: Consider the following pairs :

Vaishnava Saints Region of strong following

1. Ramanujacharya : South India

2. Chaitanya : Central India

3. Vallabhacharya : Gujarat and Braj area

4. Ramanand : North India

Of these pairs :

(a) 1, 2 and 3 are correctly matched

(b) 2, 3 and 4 are correctly matched

(c) 1 and 4 are correctly matched

(d) 1, 3 and 4 are correctly matched
3423: Consider the following statements:

1. The Nuclear Suppliers Group has 24 countries as its members.

2. India is a member of the Nuclear Suppliers Group.

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
3424: The Constitution (98th Amendment) Act is related to :

(a) Empowering the Centre to levy and appropriate service tax

(b) The constitution of the National Judicial Commission

(c) Readjustment of electoral constituencies on the basis of the Population Census 2001

(d) The demarcation of new boundaries between States
3425: Retina in the eyes acts as a ........ in the camera.

(a) Lens

(b) Shutter

(c) Film

(d) None of these