271. The soil found in areas of heavy rainfall and high humidity, where there is good growth of vegetation is A. peat and marshy soil B. saline and alkaline soil C. black soil D. alluvial soil ✅ The correct answer is option A.
272. The northern hemisphere and the southern hemisphere are separated by A. the International Date line B. the plane of the equator C. the plane of Tropic of Cancer D. the plane of Tropic of Capricorn ✅ The correct answer is option B.
273. The rainfall in the peninsular interior averages about A. 650 mm a year B. 750 mm a year C. 850 mm a year D. 550 mm a year ✅ The correct answer is option A.
274. The longest epoch of the tertiary period is A. Palaeocene B. Eocene C. Oligocene D. Miocene ✅ The correct answer is option B.
275. The meridian passing through London is called the A. equator B. Tropic of Cancer C. Prime Meridian of 0� Meridian D. Tropic of Capricorn ✅ The correct answer is option C.
276. The most important factor that is affecting all the chemical weathering processes is A. vegetation B. topography C. climate D. None of the above ✅ The correct answer is option C.
277. The snow line on the northern side of greater Himalayas range about A. 4,500 to 6,000 metres B. 5,500 to 6,000 metres C. 3,500 to 6,000 metres D. None of the above ✅ The correct answer is option B.
278. The smallest division of geological time scale is A. eon B. eras C. stage D. periods ✅ The correct answer is option C.
279. The place where material is excavated when the zone of maximum stream velocity approaches the stream’s bed is called A. scoured pools B. riffles C. ox-bow lakes D. flood plain ✅ The correct answer is option A.
280. The traditional lands of the nomads of Central Asia are A. Mongolia and Tibet B. Sinkiang and Turkistan C. Kirghiz steppe D. All of the above ✅ The correct answer is option D.