Environmental studies Class 8 MCQ environmental engineering

Attempt now to check your rank among 42 students! 30 Questions 20 Mins

About this Quiz

This Environmental studies Class 8 MCQ test contains random 30 Objective Questions. You have select one correct answer among given options.

Environmental studies Class 8 MCQ With Answers

1. The adverse effect of modern agriculture is

  • water pollution
  • soil degradation
  • water logging
  • all of the above

2. The impact of construction of dams

  • Submerges forest
  • Loss of wild life habitat
  • Damages down stream ecosystem
  • all of the above

3. Which of the following is a biotic component of an ecosystem?

  • Fungi
  • solar light
  • temperature
  • humidity

4. Which of the following conceptual spheres of the environment is having the least storage capacity for matter?

  • Atmosphere
  • Lithosphere
  • Hydrosphere
  • Biosphere

5. In complex ecosystems the degree of species diversity is

  • poor
  • high
  • medium
  • none

6. In an ecosystem, the flow of energy is

  • Bidirectional
  • cyclic
  • unidirectional
  • multidirectional

7. Air pollution is _________________

  • the addition of any substance that has harmful or toxic effects to air
  • the addition of any good substance that benefits air
  • a chemical reaction
  • none of the above

8. The sequence of eating and being eaten in an ecosystem is called

  • Food Chain
  • carbon cycle
  • hydrological cycle
  • anthroposystem

9. Energy and manure are generated by

  • Nuclear plants
  • Thermal plants
  • Biogas plants
  • Hydroelectric plants

10. Water logging is a phenomena in which

  • Crop patterns are rotated
  • Soil root zone becomes saturated due to over irrigation
  • Erosion of soil
  • none of above

11. The objective of environmental education is

  • Raise consciousness about environmental conditions
  • To teach environmentally appropriate behaviour
  • Create an environmental ethic
  • All of the above

12. The organisms who directly feed on producers are called

  • Herbivores
  • Carnivores
  • Decomposers
  • Saprophytes

13. Ultra-violet radiation is absorbed and removed by

  • Ozone
  • Oxygen
  • Carbondioxide
  • Carbon tetrachloride

14. Atmosphere consists of 79 per cent Nitrogen and 21 per cent Oxygen by

  • volume
  • weight
  • density
  • all the three

15. Which of the following is a producer in an ecosystem

  • Plants and some bacteria capable of producing their own food
  • Animals
  • Human beings
  • Fish

16. Which of the following components of the environment are effective transporters of matter?

  • Atmosphere and Hydrosphere
  • Atmosphere and Lithosphere
  • Hydrosphere and Lithosphere
  • Biosphere and Lithosphere

17. Biosphere is

  • The solid shell of inorganic materials on the surface of the earth
  • The thin shell of organic matter on the surface of earth comprising of all the living things
  • the sphere which occupies the maximum volume of all of the spheres
  • all of the above

18. Power generation by following mode is least polluting

  • Coal
  • Oil
  • Natural gas
  • Hydro energy

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