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UP Board Class 10 Lifelines of National Economy — practice questions

39 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.

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Per NCERT Class 10 Biology Ch 5, how many CHAMBERS does the human heart have?Per NCERT, why do mammals + birds have FOUR-chambered hearts (vs. 3 in amphibians)?Per NCERT, oxygen-rich blood from the lungs enters which chamber of the heart FIRST?Per NCERT, the RIGHT VENTRICLE pumps blood to which destination?Per NCERT, what is DOUBLE CIRCULATION (in mammals + birds)?Per NCERT, what is the FUNCTION of VALVES in the heart?Per NCERT, what are NORMAL SYSTOLIC and DIASTOLIC blood pressures in a healthy adult?Per NCERT, ARTERIES carry blood FROM the heart and have THICK, ELASTIC walls. Why?Per NCERT, what are CAPILLARIES?Per NCERT, what is the role of PLATELETS in human blood?Per NCERT, what role does XYLEM play in plant transportation?Per NCERT, what does PHLOEM transport in plants?The Golden Quadrilateral is a system of super-highways connecting:The first passenger train in India ran in 1853 from:The HBJ pipeline mentioned in the chapter carries gas from:National Waterway 1 (NW-1) covers which stretch of which river?India has how many major (Centre-managed) sea ports?India's trade balance is described in the chapter as historically:India Post's network is described as:The most important means of moving freight in India is:India has the second-largest road network in the world, after:National Highway 44 — the longest in India — runs between:India's container traffic is highest at which port?The Golden Quadrilateral super-highway project connects which four metropolitan cities?Which is India's biggest inland-waterway terminal port?India's first major satellite-launch operation hub is at:In which year was the Indian Postal Service introduced under colonial rule?India's longest river-linked inland waterway is NW1 — what does NW1 connect?Which is the southernmost major port on India's east coast?In NCERT Ch 7, 'trade' refers to:Which transport mode is MOST suited for moving petroleum and natural gas across long distances within India?India's first long-distance pipeline operational network for crude oil runs between:India's foreign-trade composition has SHIFTED in recent decades to include MORE exports of:India has emerged as one of the most favoured destinations for which kind of tourism?Which Indian airline corporation, prior to nationalisation reform, operated India's international flights?International trade is considered the 'economic barometer' of a country because:India's deepest landlocked port, fully mechanised for handling iron-ore exports, is:The Konkan Railway, a major engineering feat under Indian Railways, links Mumbai with which southern Indian ciWhich mode of transport in India has the LOWEST share of freight movement, per the chapter?