MCQ Life on The Earth Chapter 15 Class 11 Geography – III Advertisement 1. How many types of biogeochemical cycles are there?A.) Two typesB.) Three typesC.) Four typesD.) Six typesQuestion 1 of 202. Gaseous cycle and sedimentary cycle are types of what?A.) Biological cycleB.) Biochemical cycleC.) Chemical cycleD.) None of the aboveQuestion 2 of 203. What is the source of gaseous cycle?A.) OceanB.) EarthC.) EnvironmentD.) EcologyQuestion 3 of 204. What is the source of sedimentary cycle?A.) Soil, sediments, rocksB.) Gases, soilC.) Soil, waterD.) None of the aboveQuestion 4 of 205. What is it called to a cycle of water maintained by all living being in the atmosphere and lithosphere?A.) Atmospheric cycleB.) Lithospheric cycleC.) The water cycleD.) The hydrological cycleQuestion 5 of 206. In which of the following are the organic compounds starch cellulose and sucrose accumulated?A.) In plantsB.) CarbonC.) StarchD.) AquaticQuestion 6 of 207. What is the byproduct of photosynthesis?A.) Hydrogen monoxideB.) Carbon dioxideC.) OxygenD.) HydrogenQuestion 7 of 208. What percentage of nitrogen gas is in the atmosphere?A.) 78 percentB.) 70 percentC.) 60 percentD.) 45 percentQuestion 8 of 209. Which of the following organisms can absorb nitrogen directly?A.) Soil bacteria – blue-green algaeB.) GermsC.) MicroorganismsD.) AnimalsQuestion 9 of 2010. What percentage of nitrogen is biological?A.) 90 percentB.) 80 percentC.) 40 percentD.) 20 percentQuestion 10 of 2011. Which of the following is compounded by lightning or cosmic radiation in the atmosphere?A.) NitrogenB.) CarbonC.) OxygenD.) SteamQuestion 11 of 2012. Which of the following is the process of converting nitrate back into free nitrogen?A.) De nitrificationB.) NitrateC.) OxidationD.) CarbonQuestion 12 of 2013. Which of the following minerals is mainly obtained in primary form?A.) In inorganic formB.) In organicC.) NitriteD.) PhosphorusQuestion 13 of 2014. Imbalances in which of the following cause natural calamities floods earthquakes disease climate change?A.) Environmental imbalanceB.) The rainC.) The heatD.) SteamQuestion 14 of 2015. Who among the following is included in biosphere?A.) All living thingsB.) Only plantsC.) Only animalsD.) All living and non-living thingsQuestion 15 of 2016. Tropical grasslands are known by which of the following names?A.) StappyB.) PrairieC.) SavannahD.) No oneQuestion 16 of 2017. Which of the following forms when iron and oxygen combine with iron found in rocks?A.) Iron carbonateB.) Iron oxideC.) Iron nitrateD.) Iron sulfateQuestion 17 of 2018. Carbon dioxide in the presence of light combines with water to form which of the following during the synthesis process?A.) ProteinB.) Amino acidC.) CarbohydratesD.) VitaminsQuestion 18 of 2019. Sun is the primary source of one of the following?A.) EnergyB.) HeliumC.) ColdD.) HeatQuestion 19 of 2020. Which of the following decompositions depend on each level?A.) On the deceasedB.) On the waterC.) On plantsD.) On germsQuestion 20 of 20 Loading...
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