21. The most important organisms of an ecosystem are
22. The subsurface sources of water is
23. The sudden increase in the population of the species is
24. The TAJ MAHAL at AGRA may be damaged by
25. The term Environment is derived from an old French word enviro means
26. The three major living components of an ecosystem are
27. Which of the following is not a method of water conservation
28. Which of the following statement about the forest is not correct
29. Word oikos means.............and logos means..............
30. Zone consisting air, water and soil is known as
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