671: Consider the following factors:

1. Rotation of the Earth

2. Air pressure and wind

3. Density of ocean water

4. Revolution of the Earth

Which of the above factors influence the ocean currents?

(a) 1 and 2 only
(b) 1, 2 and 3
(c) 1 and 4
(d) 2, 3 and 4
672: Match List I with List II and select the correct answer using the codes given below the Lists :

List I

I. Pandit Vishnu Digamber Paluskar
II. Venkatamahi
III. Shyama Shastri
IV. Amir Khusru

List II

(A) Introduced the scheme of Raga classification of Indian music
(B) Proponent of Carnatic music
(C) Proponent of the Khayal form of Hindustani music
(D) Wrote the music for the song Vande Mataram

Codes:

(a) I-D, II-A, III-C, IV-B
(b) I-D, II-A, III-B, IV-C
(c) I-A, II-D, III-C, IV-B
(d) I-A, II-D, III-B, IV-C
673: At the time of India's Independence, Mahatma Gandhi was

(a) a member of Congress Working Committee

(b) not a member of the Congress

(c) the President of the Congress

(d) the General Secretary of the Congress
674: The alpha-particle carries two positive charges. Its mass is very nearly equal to that of

(a) two protons

(b) an atom of helium

(c) sum of masses of two positrons and two neutrons

(d) two positrons as each positron carries a single positive charge
675: Laterite Soil is found in India in:

(a) Western Ghats

(b) Eastern Ghats

(c) Deccan Plateau

(d) Satpura region in Madhya Pradesh