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Environmental Biology — MCQs Biology

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1. Environmental biology primarily studies:





2. Abiotic components of an ecosystem include:





3. Biotic components include:





4. Population in environmental biology refers to:





5. Habitat is defined as:





6. Niche refers to:





7. Producers are:





8. Consumers include:





9. Decomposers are important because they:





10. Primary consumers are:





11. Secondary consumers feed on:





12. Tertiary consumers feed on:





13. Ecological pyramids represent:





14. Pyramid of numbers shows:





15. Pyramid of biomass shows:





16. Pyramid of energy shows:





17. Biogeochemical cycles describe:





18. Carbon cycle involves:





19. Nitrogen fixation is carried out by:





20. Denitrification converts:





21. Phosphorus cycle does not include:





22. Oxygen is replenished in the environment by:





23. Aquatic ecosystems include:





24. Freshwater ecosystems include:





25. Marine ecosystems include:





26. Terrestrial ecosystems include:





27. Biomes are:





28. Temperate forests are characterized by:





29. Desert ecosystems have:





30. Grasslands are dominated by:





31. Tundra ecosystems are:





32. Coral reefs are formed by:





33. Keystone species are:





34. Invasive species are:





35. Ecological succession is:





36. Primary succession occurs on:





37. Secondary succession occurs on:





38. Climax community refers to:





39. Biodiversity refers to:





40. Genetic diversity is:





41. Species diversity refers to:





42. Ecosystem diversity refers to:





43. Endangered species are:





44. Conservation biology aims to:





45. Ecological footprint measures:





46. Greenhouse gases include:





47. Global warming is caused by:





48. Acid rain is caused by:





49. Ozone layer depletion is due to:





50. Sustainable development aims to:





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