3401: With reference to Indias satellite launch vehicles, consider the following statements:
1. PSLVs launch the satellites useful for Earth resources monitoring whereas GSLVs are designed mainly to launch communication satellites.
2. Satellites launched by PSLV appear to remain permanently fixed in the same position in the sky, as viewed from a particular location on Earth.
3. GSLV Mk III is a four-staged launch l vehicle with the first and third stages l using solid rocket motors; and the second and fourth stages using liquid rocket engines.
Which of the statements given above is/are correct.?
(a) 1 only
(b) 2 and 3
(c) 1 and 2
(d) 3 only
3402: The Congress policy of pray and petition ultimately came to an end under the guidance of
(a) Aurobindo Ghosh
(b) Bal Gangadhar Tilak
(c) Lala Lajpat Rai
(d) Mahatma Gandhi
3403: NASA'S Deep Impact space mission was employed to take detailed pictures of which comet nucleus ?
(A) Hale Bopp
(B) Halley's Comet
(C) Hyakutake
(D) Tempel 1
3404: 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
3405: The average elevation of Tibetan Plateau above sea level is
(a) 2 km
(b) 3 km
(c) 4 km
(d) 5 km