21. What is the predominant type of Indian agriculture? A. Commercial agriculture B. Extensive agriculture C. plantation agriculture D. subsistence agriculture ✅ The correct answer is option D.
22. Which of the following measures are effective for soil conservation in India? A. I and II B. II and IV C. III and IV D. I, II and III ✅ The correct answer is option B.
23. The refineries are Mathura, Digboi and Panipat are set up by A. Indian Oil Corporation Ltd. B. Hindustan Petroleum Corporation Ltd. C. Bharat Petroleum Corporation Ltd. D. Crude Distillation unit of Madras Refineries Ltd. ✅ The correct answer is option A.
24. The pennines (Europe), Appalachians (America) and the Aravallis (India) are examples of A. old mountains B. young mountains C. fold mountains D. block mountains ✅ The correct answer is option A.
25. Which of the following food grain crops occupies the largest part of the cropped area in India? A. Barley and maize B. Jowar and bajra C. Rice D. Wheat ✅ The correct answer is option C.
26. Which of the following events took place in the Cenozoic era? A. Formation of the rockies, India collides with Asia and the formation of the Himalayas and the Alps B. Formation of the Appalachians and central European mountains C. Splitting of India from Antarctic D. Breaking up of Pangaea ✅ The correct answer is option A.
27. The only state in India that produces saffron is A. Assam B. Himachal Pradesh C. Jammu and Kashmir D. Meghalaya ✅ The correct answer is option C.
28. Which of the following has a potential for harnessing of tidal energy in India? A. Gulf of Cambay B. Gulf of Mannar C. Backwaters of Kerala D. Chilka lake ✅ The correct answer is option A.
29. The watershed between India and Myanmar is formed by A. the Naga hills B. the Garo hills C. Khasi hills D. the Jaintia hills ✅ The correct answer is option A.
30. Three important rivers of the Indian subcontinent have their sources near the Mansarover Lake in the Great Himalayas. These rivers are A. Indus, Jhelum and Sutlej B. Brahmaputra, Sutlej and Yamuna C. Brahmaputra, Indus and Sutlej D. Jhelum, Sutlej and Yamuna ✅ The correct answer is option C.