Olympiad – Class VIII – Science - Bio - Conservation of Plants and Animals

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Question - 1

What is the variety of life and the diversity of genes, species and ecosystems of a region and their inter connectedness called?

  • A Biosphere
  • B Biodiversity
  • C Bioconservation
  • D Biocommunity

Question - 2

Which of the following is/are caused due to uncontrolled deforestation?

  • A The destruction of habitats
  • B Landslides
  • C Floods
  • D All of these

Question - 3

Which of the following is the result of drought?

  • A Flooding
  • B Volcanic eruptions
  • C Decreased production of food
  • D Increased photosynthesis in plants

Question - 4

Which of the following includes all living organisms and all lifesupporting regions of the Earth?

  • A Biosphere
  • B Ionosphere
  • C Stratosphere
  • D Lithosphere

Question - 5

Which of the following shows a modern technology measure that helps preserve and conserve the environment?

  • A he practising crop rotation
  • B The recycling of paper, plastics and metal cans
  • C sing machines in agricultural industry
  • D Converting industrial wastes into biogas

Question - 6

Which of the following is an abiotic component?

  • A Cow
  • B Grass
  • C Temperature
  • D Bacteria

Question - 7

Which of the following are the effects of the mismanagement of timber logging?

  • A Floods
  • B Soil erosion
  • C Aforestation
  • D Both (A) and (B

Question - 8

Which of the following must be practised to preserve and conserve the environment?

  • A Deforestation
  • B Recycling
  • C Soil erosion
  • D Pollution

Question - 9

Which of the following is the result of the introduction of exotic species?

  • A Conservation of wildlife
  • B Maintenance of biodiversity
  • C Adverse affect on native species adversely.
  • D The survival of native species

Question - 10

Which of the following is/are advantage( s) of forests?

  • A Forests provide us with oxygen
  • B They protect soil and provide habitat to a large number of animals
  • C They help in bringing good rainfall in neighbouring areas
  • D All of these