4121: Which of the following is cold ocean current?

(a) Labrador

(b) Gulf Stream

(c) Kuro Shio

(d) None of these
4122: Which one of the following non-metals is not a poor conductor of electricity?

(a) Bromine
(b) Sulphur
(c) Phosphorus
(d) Selenium

4123: Consider the following statements :

Hard water is not suitable for

I. drinking.
II. washing cloths with soap.
III. use in boilers.
IV. irrigating crops.

Which of these statements are correct ?

(a) I and III

(b) II and III

(c) I, II and IV

(d) I, II, III and IV
4124: India's contribution to Mathematics includes:

1. Number system
2. Decimal system
3. Concept of zero

(a) 1, 2 & 3
(b) 1 & 2
(c) 2 & 3
(d) 1 & 3
4125: A deadlock between the Lok Sabha and the Rajya Sabha calls for a joint sitting of the Parliament during the passage of

1. Ordinary Legislation

2. Money Bill

3. Constitution Amendment Bill

Select the correct answer using the codes given below :

(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3