[{"id":179533,"question":"The nitrate forming bacteria are.","choices":[{"text":"Rhizobium","value":"A"},{"text":"Nitrosomonas","value":"B"},{"text":"Nitrobacter","value":"C"},{"text":"Cocci","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":179532,"question":"Conversion of urea and uric acid into Ammonia is called.","choices":[{"text":"Assimilation","value":"A"},{"text":"Nitrogen fixation","value":"B"},{"text":"Ammonification","value":"C"},{"text":"Biological fixation","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":179530,"question":"One of these cycles is also nutrients cycles.","choices":[{"text":"Biogeochemical cycles","value":"A"},{"text":"Carbon cycles","value":"B"},{"text":"Water cycles","value":"C"},{"text":"Nitrogen cycles","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":179529,"question":"Naturally found in graphite and diamond.","choices":[{"text":"Nitrogen","value":"A"},{"text":"Oxygen","value":"B"},{"text":"Hydrogen","value":"C"},{"text":"Carbon","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":179527,"question":"conversion of the nitrogen gas into nitrates is called.","choices":[{"text":"Denitrification","value":"A"},{"text":"Nitrogen fixation","value":"B"},{"text":"Assimilation","value":"C"},{"text":"Ammonification","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":179525,"question":"Which Charles Eiton developed the concept of ecological pyramids?","choices":[{"text":"1926","value":"A"},{"text":"1927","value":"B"},{"text":"1928","value":"C"},{"text":"1929","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":179523,"question":"The basic tropic level of all food chain is.","choices":[{"text":"Producers","value":"A"},{"text":"Consumers","value":"B"},{"text":"Decomposers","value":"C"},{"text":"Reducers","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":179522,"question":"Which are put in first trophic level?","choices":[{"text":"Carnivores","value":"A"},{"text":"Producers","value":"B"},{"text":"Herbivores","value":"C"},{"text":"Consumers","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":179521,"question":"At the end of a long food chian the energy will be.","choices":[{"text":"Will more","value":"A"},{"text":"As same as at start","value":"B"},{"text":"Will less","value":"C"},{"text":"Zero","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":179520,"question":"The only source of energy for all ecosystems of the world is.","choices":[{"text":"Sun","value":"A"},{"text":"Moon","value":"B"},{"text":"Plants","value":"C"},{"text":"Ocean","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":179516,"question":"Primary source of energy for all ecosystem is.","choices":[{"text":"Electricity","value":"A"},{"text":"Sun","value":"B"},{"text":"Fire","value":"C"},{"text":"Nutrients","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":179514,"question":"The total amount of living matter in an ecosystem at any time is called.","choices":[{"text":"Biomass","value":"A"},{"text":"Energy","value":"B"},{"text":"Food Chain","value":"C"},{"text":"Food web","value":"D"},{"value":"E"}],"correctAnswer":2}]