901: For the measurement/estimation of which of the following are satellite images/remote sensing data used?

1. Chlorophyll content in the vegetation of a specific location
2. Greenhouse gas emissions from rice paddies of a specific location
3. Land surface temperatures of a specific location

Select the correct answer using the code given below.

(a) 1 Only

(b) 2 and 3 only

(c) 3 only

(d) 1, 2 and 3
902: Match List I with List II and select the correct answer using the codes given below the Lists :

List I---------------------------------------List II


(Libraries)---------------------------------- (Locations)

I. Saraswati Mahal Library------------------- (A) Patna
II. Library of Tibetan Work and Archives------ (B) Dharamsala
III. Raza Library-------------------------------(C) Thanjavur
IV. Khuda Baksh Oriental Public Library--------- (D) Rampur

Codes :

(a) I-C, II-B, III-D, IV-A
(b) I-C, II-B, III-A, IV-D
(c) I-B, II-C, III-A, IV-D
(d) I-B, II-C, III-D, IV-A
903: INSAT-3E, India's communication satellite, was launched in 2003 from:

(a) French Guyana
(b) Seychelles
(c) Mauritius
(d) Mauritania
904: In which one among the following is the speed of sound maximum ?

(a) Air at 100 degree celcius
(b) Air at 0 degree celcius
(c) Wood
(d) Water
905: 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