646: Which one of the following is the correct sequence of the states (labelled 1, 2, 3 and 4) of India shown on the map in descending order in terms of their available ground water resources for irrigation ?
(a) 3, 4, 1, 2
(b) 3, 4, 2, 1
(c) 4, 3, 1, 2
(d) 4, 3, 2, 1
Explanation:
In terms of available ground water resources for irrigation, the decreasing order is : '4' Uttar Pradesh (7.25 m ha.m) > '3' Maharashtra(2.54 m. ha.m) > 2 West Bengal (1.96 m. ha.m) > '1' Assam (1.91 m. ha.m)
647: Which one of the following planets has largest number of natural satellites or moons?
(a) Venus
(b) Mars
(c) Jupiter
(d) Saturn
Explanation:
3. Natural Satellite, a body in space that orbits a larger body. The larger body is referred to as the satellites primary. Natural satellites that orbit planets are often called moons. Other objects in the solar system that sometimes have satellites include dwarf planets, Kuiper Belt Objects centaurs, and galaxies that orbit larger galaxies.
Neither Mercury nor Venus has any natural satellite is Earths Moon. The moon is unusually large relative to the size of its primary (Earth) and has diameter about one-fourth the diameter of the planet. The Moons surface, like the surfaces of most of the natural satellites in the solar system, is heavily cratered and geologically inactive.
Neither Mercury nor Venus has any natural satellites, but Mars has two small moons: Phobos and Deimos . Jupiter has more than 60 natural satellites, four of which are quite large: Lo, Ganymede, Callisto, and Europa. These large moons were discovered by Galileo with an early telescope in 1610 the first moons detected around another planet. Active volcanoes cover lo and scientists Believe that oceans of water may hide beneath the icy crust of Ganymede, Callisto, and Europa. All four of these moons are larger than the dwarf planet Pluto, and Ganymede is larger than the Planet Mercury as well. Saturn also has at least 60 natural satellites, the largest of which is Titan. Titan is bigger that mercury and is the only moon with a thick atmosphere. Enceladus, one of Saturns smaller moons, has active volcanism in the form of geysers that send out vast plumes of liquid water from the south polar region. Uranus has at least 27 moons, none of which is as large as Earths moon. Miranda, one of Uranuss smaller moons shows signs of terrific upheavals on its surface. Neptunes largest natural satellite, Triton is slightly larger than Pluto. Its surface appears to be continually reshaped by the freezing and thawing of nitrogen.
648: Out of the four southern States : Andhra Pradesh, Karnataka, Kerala and Tamil Nadu, which shares boundaries with the maximum number of Indian States ?
(a) Andhra Pradesh only
(b) Karnataka only
(c) Each of Andhra Pradesh and Karnataka
(d) Each of Tamil Nadu and Kerala
Explanation:
State ----------- Boundary shared by
Andhra Pradesh - Maharashtra, Karnataka, Chattisgarh, Orissa, Tamilnadu
Karnataka - Goa, Maharashtra, Andhra Pradesh, Tamilnadu, Kerala
Tamilnadu - Andhra Pradesh, Kerala, Karnataka
Kerala - Karnataka, Tamilnadu
649: The correct sequence of the eastward flowing rivers of the peninsular India from north to south is
(a) Subranarekha, Mahanadi, Godavari, Krishana, Pennar, Cauvery and Vagai
(b) Subranarekha, Mahanadi, Godavari, Cauvery, Vagai Pennar
(c) Mahanadi, Subarnarekha, Godavari, Krishna, Cauvery, Pennar and vagai
(d) Mahanadi, Subarnarekha, Krishna, Godavari, Cauvery, Vagai and Pennar
650: During a thunderstorm, the thunder in the skies is produced by the
1. meeting of cumulonimbus clouds in the sky
2. lightning that separates the nimbus clouds
3. violent upward movement of air and water particles
Select the correct answer using the codes given below.
(a) 1 only
(b) 2 and 3
(C) 1 and 3
(d) None of the above produces the thunder
Explanation:
Thunderstorms result from the rapid upward movement of warm, moist air. They can occur inside warm, moist air masses and at fronts. As the warm, moist air moves upward, it cools, condenses, and forms cumulonimbus clouds
The thunderstorms are associated with the cumulonimbus clouds. These clouds normally form on warm sunny days but they can also be found on cold front.
So option (C) is correct