Environment and Ecology Oneliners

 

1. The sum total condition in which organisms live is called as Environment.

2. A self supporting community - plants and animals interacting with each other and the non living environment to provide a balanced system is a Ecosystem.

3. The word ‘ecosystem’ was coined by A.G. Tansley.

4. The region existing between two ecosystems which contain species of both ecosystems is Ecotone.

5. The study of interactions between living organism and environment is called as Ecology.

6. The term ecology was introduced by Hackel.

7. Large portions of the earth with similar climate, soil, plant and animal life community is known as Biosphere.

8. The earth contains a thin region known as the biosphere, in which life exists. The three parts of the biosphere are Atmosphere, hydrosphere and lithosphere.

9. Sphere of Water or 70% of global is occupied by Hydrosphere.

10. The characteristics of the type of environment where an organism normally lives is called Habitat.

11. All the populations of the different species living and interacting in the same ecosystem is called Community.

12. The variety of living organisms (flora and fauna) is called as Biodiversity.

13. The environment which includes producers, consumers and decomposers is called Biotic environment.

14. Abiotic environment does not include Plants.

15. The environment which has been modified by human activities is called Anthropogenic environment.

16. The group of organisms which convert light into food are called Autotrophs.

17. The plants, which produce food themselves through photosynthesis are called Phototrophs.

18. The ecosystem component that feed on producers or consumers are called Heterotrophs.

19. The heterotrophs that feed on plants and are called primary consumers are Herbivores.

20. The heterotrophs that feed on meat and are called secondary consumers are Carnivores.

21. The main constituent of CNG is Methane.

22. The heterotrophs that feed on both plants and meat are called Omnivores.

23. The base of the food chain in the ocean is the Phytoplankton.

24. Primary consumers in aquatic systems are Zooplanktons.

25. The ecosystem component which breaks down dead organic matter and wastes are Decomposers.

26. Decomposers include Bacteria and Fungi.

27. In which ecosystem producers are of large size? Grassland ecosystem.

28. Natural resources which are renewable include Water and wood.

29. Non-renewable resources are Minerals, fossil fuels.

30. The main constituent of LPG is Butane.

31. The source of energy for all plants is the Sun.

32. The ecological factors related to soil and substratum are called Edaphic Factor.

33. The term used to refer to the weight of all the organisms at a trophic level is Biomass.

34. The unit of energy is Joule.

35. Which is not included under biomass? Water.

36. Plants which grow on other plants are called Epiphytes.

37. Increasing industrialisation is causing much danger to man’s life by Polluting the environment.

38. Major pollutants that contribute to 90% of global air pollution are CO and CO2.

39. Global warming focuses on an increase in the level of which gas in the atmosphere? Carbon dioxide.

40. Colourless and odourless air pollutant is SO2.

41. Most poisonous pollutant in water is Arsenic.

42. Most commonly used disinfectant in water purification is Chlorine.

43. The test which shows self purification capacity of water body is BOD (Biochemical Oxygen Demand) test.

44. Materials that cause BOD include Wood, animal wastes, sewage.

45. Permissible limit of iron in drinking water is 1 ppm.

46. A disease caused by mercury (Hg) poisoning of water at Japan in 1953 is Minamata.

47. Minamata disease is due to Mercury toxicity.

48. Itai-Itai disease is due to Cadmium (Cd) toxicity.

49. The chief greenhouse gases are CO2 and CH4.