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07 natural resources and their management jstse previous years


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07 natural resources and their management jstse previous years

  1. 1. Previous Years (Biology-Natural Resources & Their Management) JSTSE PREVIOUS YEARS BIOLOGY : Natural Resources & Their Management 1. Life supporting zone of Earth is known as: [2012] (a) Hydrosphere (b) Biosphere (c) Atmosphere (d) Lithosphere 2. The three R's which can help to conserve natural resources: [2013] (a) recycle, regenerate, reuse (b) reduce, recycle, reuse (c) reduce, reuse, redistribute (d) Both (a) and (b) 3. Causing storage losses to agricultural produce: [2013] (a) Insects (b) Rodents (c) Mites (d) All the above 4. One of the following is a green House gas [2013] (a) CO2 (b) N2 (c) O2 (d) H2 5. Which of the following is a rock bee? [2013] (a) Apis dorsata (b) Apis cerana (c) Apis florae (d) Apis mellifera 6. In Nigrogen cycle which bacteria is responsible for nitrification: [2014] (l) Rhizobium (b) Clostridium (c) Nitrosomonas (d) Azotobactor 7. One of the following is a Green House Gas: [2014] (a) CO2 (b) N2 (c) O2 (d) H2
  2. 2. Previous Years (Biology-Natural Resources & Their Management) 8. Depletion of ozone layer is due to: [2014] (a) CO2 (b) CFC (c) NH3 (d) H2 9. Rainfall patterns prevailing in an area generally depends on: [2015] (a) Temperature (b) Wind patterns (c) Pressure increase (d) Pollution levels 10. Which of following is green-house gases? [2015] (a) Carbon dioxide (b) Methane (c) Nitrous oxide (d) All the above 11. Clearing of forests and using that land for other purposes is called: [2015] (a) Deforestation (b) Afforestation (c) Social forestry (d) Reforestation 12. July 11, is observed as: [2015] (a) World population day (b) No tobacco day (c) World Health day (d) World Environment day 13. 2, 4-D is a: [2015] (a) Insecticide (b) Pesticide (c) Weedicide (d) All of the above 14. Rhizobium lives in the : [2015] (a) Yeast cells (b) Stem of green plant (c) Air (d) Root nodules of leguminous plant