51. Earthquakes are caused by – A. Denudation B. Tectonism C. Earth revolution D. Earth rotation ✅ The correct answer is option B.
52. Sink hole is a phenomenon of topography. A. Plain B. Desert C. Tundra D. Karst ✅ The correct answer is option D.
53. The surface temperature of the sun is estimated as – A. 6000 °C B. 12000 °C C. 18000 °C D. 24000 °C ✅ The correct answer is option A.
54. The majority of Earth’s crust is composed of which rock? A. Igneous B. Metamorphic C. Sedimentary D. Carbonate ✅ The correct answer is option A.
55. The Equator does not pass through which of the following countries? A. Kenya B. Mexico C. Indonesia D. Brazil ✅ The correct answer is option B.
56. The asteroids revolve round the Sun in between : A. Earth and Mars B. Mars and Jupiter C. Jupiter and Saturn D. Saturn and Uranus ✅ The correct answer is option B.
57. Basaltic lava is found in the – A. Deccan Trap B. Himalayas C. Indo-Gangetic Plain D. North-Eastern Hills ✅ The correct answer is option A.
58. On which of the following planets water cycle is available? A. Jupiter B. Earth C. Mars D. Venus ✅ The correct answer is option B.
59. Mushroom Rocks are the typical land forms seen in – A. River Valleys B. Mountain tops C. Coastal areas D. Deserts ✅ The correct answer is option D.
60. Which is the second nearest star to the Earth after the Sun? A. Vega B. Sirius C. Proxima Centauri D. Alpha Centauri ✅ The correct answer is option C.