6th Class Science The Living Organisms and their Surrounding Question Bank

done Self Test-17 Total Questions - 10

• question_answer1)
  Presence of huge quantity of water vapor, methane, nitrous oxide and carbon dioxide in the atmosphere that reflect back heat on to the earth surface produces which one of the following?
  A)
   Reflection of light done clear
  B)
   Green house effect done clear
  C)
   Holes in the ozone layer done clear
  D)
   All of these done clear
  E)
   None of these done clear
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• question_answer2)
  A population of plants and animals which live in a particular area and use the resources is called which one of the following types of system?
  A)
   Socio economic system done clear
  B)
   Environmental system done clear
  C)
   Ecosystem done clear
  D)
   All of these done clear
  E)
   None of these done clear
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• question_answer3)
  Which one of the following is a biotic component of the environment?
  A)
   Air done clear
  B)
   Water  done clear
  C)
   Soil done clear
  D)
   Plants done clear
  E)
   None of these done clear
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• question_answer4)
  Consider the following statements: Statement 1: Concentration of carbon dioxide in the air of our environment is continuously increasing. Statement 2: Concentration of carbon dioxide in our environment is continuously decreasing. Which one of the following is correct about the above statements?
  A)
   Statement 1 is false and 2 is true done clear
  B)
   Both statements are true done clear
  C)
   Both statements are false done clear
  D)
   Statement 1 is true and 2 is false done clear
  E)
   None of these done clear
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• question_answer5)
  Choose the correct one which is a consequence of global warming.
  A)
   Increasing agricultural productivity done clear
  B)
   Rising sea level done clear
  C)
   Advanced technology done clear
  D)
   All of these done clear
  E)
   None of these done clear
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• question_answer6)
  Air is the mixture of different gases. Which one of the following gases is highly concentrated in the air of our environment?
  A)
   Carbon dioxide done clear
  B)
   Oxygen done clear
  C)
   Nitrogen done clear
  D)
   Ozone done clear
  E)
   None of these done clear
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• question_answer7)
  Which one of the following is the primary effect of UV radiation caused due to depletion of ozone layer?
  A)
   Heart attack done clear
  B)
   Skin cancer done clear
  C)
   High fever done clear
  D)
   All of these done clear
  E)
   None of these done clear
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• question_answer8)
  Plants are capable to make their own food due to which one of the following main features?
  A)
   Chromosome done clear
  B)
   Stem done clear
  C)
   Fiber done clear
  D)
   Chlorophyll done clear
  E)
   None of these done clear
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• question_answer9)
  Decomposers play an important role to keep our environment clean. Which one of the following cannot be decomposed by the decomposers easily?
  A)
   Bamboo fiber done clear
  B)
   Insects in the soil done clear
  C)
   Dead body done clear
  D)
   Plastic done clear
  E)
   None of these done clear
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• question_answer10)
  Identify the secondary consumer from the options below.
  A)
                                 Alpaca done clear
  B)
             Mountain goat done clear
  C)
                   Lion         done clear
  D)
   All of these done clear
  E)
   None of these done clear
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