Question 11 Mark………….. is a natural herbal medicine for cough and cold.AnswerAdulsaView full question & answer→
Question 21 Mark………….. and ………….. are used for adding fragrance in soaps and incense sticks.AnswerSandalwood and oil of EncalyptusView full question & answer→
Question 31 MarkThe main component of Natural gas is ………….. .AnswerMethaneView full question & answer→
Question 41 MarkNatural gas is transformed under high pressure into ………….. and ………….. .AnswerLNG and CNGView full question & answer→
Question 51 Mark………….. is the largest oil and gas research and production company in India.AnswerONGCView full question & answer→
Question 61 MarkMetals are obtained from their ore by ………….. and ………….. .Answerextraction, purificationView full question & answer→
Question 81 Mark………….. is the most important ore of aluminiumAnswerBauxiteView full question & answer→
Question 91 MarkWe can obtain minerals from rocks by ………….. .AnswerminingView full question & answer→
Question 101 MarkSeparation of various fractions of petroleum is called ………….. .AnswerRefiningView full question & answer→
Question 131 MarkImpurities of sand and soil in ore are called ………….. .AnswerGangueView full question & answer→
Question 151 Mark………….. are the preserved remains of dead organisms in rock.AnswerFossilView full question & answer→
Question 161 MarkMineral oil is also known as ………….. or ………….. .Answerpetroleum, crude oilView full question & answer→
Question 171 MarkThe underground mineral oil is extracted through ………….. .Answeroil wellsView full question & answer→
Question 181 Mark………….. is the liquid fuel formed by the decomposition of organic substances.AnswerMineral oilView full question & answer→
Question 191 MarkDeposits of common salt are also found in the earth. This salt is called ………….. .Answerrock saltView full question & answer→
Question 201 MarkCoal, mineral oil and natural gas are ………….. .Answerfossil fuelView full question & answer→
Question 211 MarkMinerals that contain a high proportion of metal are called ………….. .AnsweroreView full question & answer→
Question 231 MarkThe total percent of land of world under forest cover is ………….. .Answer0.3View full question & answer→
Question 241 MarkCoal, petroleum, natural gas are ………….. resources.Answernon-renewableView full question & answer→
Question 261 MarkBiogas generation is mainly based on the principle of ………….. .AnswerFermentationView full question & answer→
Question 271 MarkAtomic energy is obtained by using ores of ………….. .AnswerUraniumView full question & answer→
Question 281 Mark………….. is the major raw material for biogas.Answercow dungView full question & answer→