281. The maximum soil fertility occurs in the pH range of September 19, 2025 by Admin A. 5.0 to 6.2 B. 6.0 to 7.2 C. 7.0 to 8.2 D. 4.0 to 5.2 ✅ The correct answer is option B.
282. The mountains which come into being after the continental drift started, with the break up of the large land mass of pangola are September 19, 2025 by Admin A. young mountains B. old mountains C. volcanic mountains D. fold mountains ✅ The correct answer is option A.
283. The lowest point, on land, in the world is September 19, 2025 by Admin A. Death valley, USA B. Caspian sea, Russia C. Dead sea, Jordan/Israel D. Lake Eyre, Australia ✅ The correct answer is option C.
284. The study of day-to-day variations in weather called is called September 19, 2025 by Admin A. climatology B. meteorology C. cyclogenesis D. None of the above ✅ The correct answer is option B.
285. The sediment deposited at the base of the glacier is called September 19, 2025 by Admin A. till B. moraine C. glacial sand D. None of the above ✅ The correct answer is option A.
286. The metamorphism which involves the chemical replacement of elements in rock minerals when gases and liquids permute into bedrock is called September 19, 2025 by Admin A. metasomatic metamorphism B. dynamic metamorphism C. thermal metamorphism D. contact metamorphism ✅ The correct answer is option A.
287. The temperature needed to keep the earth’s surface and the atmosphere in thermal equilibrium is called September 19, 2025 by Admin A. the surface temperature B. equilibrium temperature C. the mean global surface temperature D. global temperature ✅ The correct answer is option C.
288. The unit of the light year is used for measuring September 19, 2025 by Admin A. speed of satellites B. speed of ships C. distance between bodies in the universe D. speed of rockets ✅ The correct answer is option C.
289. The planets called the inner planets, are September 19, 2025 by Admin A. Jupiter, Saturn, Uranus, Neptune B. Mars, Jupiter, Saturn, Uranus C. Saturn, Uranus, Neptune, Pluto D. Mercury, Venus, Earth, Mars ✅ The correct answer is option D.
290. The main crops of kharif are September 19, 2025 by Admin A. rice, jowar, bajra B. ragi, maize C. cotton, jute D. All of the above ✅ The correct answer is option D.