This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Earth > Environmental Sciences – Quiz 99 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Environmental Sciences Quiz 99 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which aquatic ecosystem has both salt and fresh water that is mixed together (brackish water)? A) Lakes. B) Estuary. C) Oceans. D) Ponds. Show Answer Correct Answer: B) Estuary. 2. Which of the following is not an environmental function of wetlands? A) Increasing runoff. B) Absorbing and removing pollutants from water. C) Trapping carbon that wouldotherwise be released into the air. D) Controlling floods. Show Answer Correct Answer: A) Increasing runoff. 3. In an experiment, the factor that we measure is called the A) Independent variable. B) Controlled variable. C) Conclusion. D) Dependent variable. Show Answer Correct Answer: D) Dependent variable. 4. The layer of the atmosphere containing our weather is A) Thermosphere. B) Mesosphere. C) Stratosphere. D) Troposphere. Show Answer Correct Answer: D) Troposphere. 5. Terrestrial ecosystem are found only on land A) True. B) False. Show Answer Correct Answer: A) True. 6. Which of the following is a secondary pollutant? A) Carbon monoxide. B) Nitrogen dioxide. C) Smog. D) None of above. Show Answer Correct Answer: C) Smog. 7. Is the following concept true or false? "Ordinary solid waste is solid waste that is not on the list of hazardous solid waste or on the list of hazardous solid waste but has hazardous elements below the threshold of hazardous solid waste" A) Sai. B) Correct. Show Answer Correct Answer: B) Correct. 8. In a population, characteristics such as size will often be clustered around the A) Collection. B) Sample. C) Distribution. D) Mean. Show Answer Correct Answer: D) Mean. 9. Environmental problems are mainly caused by human activities A) False. B) True. Show Answer Correct Answer: B) True. 10. What does the flow of energy through an ecosystem always begin with? A) Heterotrophs. B) Grass. C) Primary Producers. D) Primary Consumers. Show Answer Correct Answer: C) Primary Producers. 11. What marks the top of the zone of saturation? A) Zone of Saturation. B) Zone of Aeration. C) Water Table. D) None of above. Show Answer Correct Answer: C) Water Table. 12. Isolines connecting points of equal air pressure are called A) Contour Lines. B) Isobars. C) Equality Lines. D) Isotherms. Show Answer Correct Answer: B) Isobars. 13. Large-scale farms that grow single crops, usually located in tropical areas A) Substistence farming. B) Parent material. C) Cover crop farming. D) Plantation agriculture. Show Answer Correct Answer: D) Plantation agriculture. 14. Which kingdom contains organisms that are unicellular, prokaryotic, and could live on a door knob? A) Fungi. B) Protist. C) Eubacteria. D) Archaebacteria. Show Answer Correct Answer: C) Eubacteria. 15. A living thing that breaks down dead plants and animals-such as, fungi, worms, bacteria, is: A) Decoposer. B) Food web. C) Omnivore. D) None of above. Show Answer Correct Answer: A) Decoposer. 16. In which layer of the Earth's atmosphere is most ozone found? A) Mesosphere. B) Thermosphere. C) Stratosphere. D) Troposphere. Show Answer Correct Answer: C) Stratosphere. 17. A gas that can reach the upper atmosphereafter a large-scale volcanic eruption A) Carbon dioxide. B) Sulfur dioxide. C) Helium. D) Hydrogen. Show Answer Correct Answer: B) Sulfur dioxide. 18. The movement by people from one place to another with the intention of settling temporarily or permanently in a new location. A) Distribution. B) Push factor. C) Pull factor. D) Migration. Show Answer Correct Answer: D) Migration. 19. Why is it important to protect the environment? A) To destroy the environment and disrupt ecological balance. B) To deplete biodiversity and exhaust natural resources. C) To worsen climate change and increase pollution. D) To maintain ecological balance, preserve biodiversity, ensure sustainability of natural resources, mitigate climate change, reduce pollution, and improve quality of life. Show Answer Correct Answer: D) To maintain ecological balance, preserve biodiversity, ensure sustainability of natural resources, mitigate climate change, reduce pollution, and improve quality of life. 20. Which of the following is an adverse effect of global warming on populations? A) Extinctions. B) Migrations of species. C) Different geographical locations. D) All of these are possible adverse effects. Show Answer Correct Answer: D) All of these are possible adverse effects. 21. Day-to-day conditions in Earth's atmosphere, such as "sunny and humid, " describe A) Biome. B) Weather. C) Climatograph. D) Climate. Show Answer Correct Answer: B) Weather. 22. Which animal can breathe with their lungs and also through their moist skin? A) Amphibians. B) Fish. C) Reptiles. D) None of above. Show Answer Correct Answer: A) Amphibians. 23. Being on time every day means to be A) Honesty. B) Initiative. C) Punctual. D) Loyal. Show Answer Correct Answer: C) Punctual. 24. What is the study of production and consumption of scarce resources? A) Environmental activism. B) Economics. C) Ecology. D) The Scientific Method. Show Answer Correct Answer: B) Economics. 25. The India Meteorological Department was founded by the British in 1875 at ..... A) Delhi. B) Pune. C) Shimla. D) Manali. Show Answer Correct Answer: C) Shimla. 26. A consequence of acid precipitation is ..... A) The decay of uranium which releases radon gas. B) The formation of smog. C) A decrease in pH. D) An increase in pH. Show Answer Correct Answer: C) A decrease in pH. 27. A continual process in which warm and cold air circulates up and down in the atmosphere is called A) Electromagnetism. B) Convection current. C) Radiation. D) The gulf stream. Show Answer Correct Answer: B) Convection current. 28. A ..... is a pollutant created from plants and animals. A) Plastic. B) Biodegradable pollutant. C) Nonbiodegradable pollutant. D) Mercury atom. Show Answer Correct Answer: B) Biodegradable pollutant. 29. Which of the following are we MOST dependant on in the United States? A) Nuclear Power. B) Hydro Power. C) Fossil Fuels. D) Wind Energy. Show Answer Correct Answer: C) Fossil Fuels. 30. What is the importance of decomposers in an ecosystem? A) They consume dead tissue. B) They photosynthesize. C) They move nutrients back into the ecosystem. D) They consume living tissue. Show Answer Correct Answer: C) They move nutrients back into the ecosystem. 31. What of these animals is a mammal? A) Frog. B) Ostrich. C) Bat. D) Crocodile. Show Answer Correct Answer: C) Bat. 32. The organism that is harmed in a close relationship between two living things is called a ..... A) Host. B) Parasite. C) Predator. D) None of above. Show Answer Correct Answer: A) Host. 33. These animals digest the waste and remains of dead plants and animals A) Scavengers. B) Decomposers. Show Answer Correct Answer: B) Decomposers. 34. What is all of the land area whose water drains into a stream system? A) Watershed. B) Suspension. C) Divide. D) Runoff. Show Answer Correct Answer: A) Watershed. 35. Burning of fossil fuels has changed the atmosphere by increasing the concentration of ozone in the atmosphere. A) Reducing the CFCs in the atmosphere. B) Increasing the concentration of carbon dioxide. C) Increasing the concentration of the ozone in the atmosphere. D) Producing a hole in the ozone. Show Answer Correct Answer: B) Increasing the concentration of carbon dioxide. 36. Why is it important to start using alternative energy sources? A) We need more energy. B) It takes millions of years to make fossil fuels and we may run out. C) There is no reason to use alternative energy. D) None of above. Show Answer Correct Answer: B) It takes millions of years to make fossil fuels and we may run out. 37. Proteins, nucleic acids, carbohydrates, and lipids are all examples of A) Elements. B) Atoms. C) Inorganic compounds. D) Macromolecules. Show Answer Correct Answer: D) Macromolecules. 38. Process which changes nitrogen in the soil to nitrogen in the atmsphere A) Nitrogen fixing bacteria in the soil. B) Denitrifying bacteria. C) Nitrification. D) Absorption. Show Answer Correct Answer: B) Denitrifying bacteria. 39. Why is competition important? A) Competition prevents populations from growing out of control. B) Competition ensures everyone has all the food they want. C) Trick question, competition isn't important. D) Competition encourages everyone to wear their best clothes and buy the biggest houses. Show Answer Correct Answer: A) Competition prevents populations from growing out of control. 40. Philippine Environmental Policy A) PD 1512. B) PD 1152. C) PD 1129. D) PD 1219. Show Answer Correct Answer: B) PD 1152. 41. Which of these describes energy trends today? A) Developed nations are using less energy per person. B) Developed nations are using more energy than developing nations. C) Developing nations are using zero energy per person. D) Developing nations are using more energy than developed nations. Show Answer Correct Answer: B) Developed nations are using more energy than developing nations. 42. A material or energy that is formed slower. Not able to be replaced in a short amount of time. Ex:oil, gas, coal A) Environmental ethics. B) Renewable Resources. C) Non-Renewable Resources. D) Natural Resources. Show Answer Correct Answer: C) Non-Renewable Resources. 43. Which organisms use silicon to create intricate cell walls known as frustules? A) Birds. B) Diatoms. C) Mammals. D) Terrestrial plants. Show Answer Correct Answer: B) Diatoms. 44. Why is a SSSI designated A) Biological importance. B) Geological importance. C) Geographical importance. D) All of the above. Show Answer Correct Answer: D) All of the above. 45. Which of these are MOST likely to be the pioneer organisms on an area of bare rock? A) Lichens. B) Shrubs. C) Perennial grasses. D) Saplings. Show Answer Correct Answer: A) Lichens. 46. Get ready for a challenge! B3.3Can you identify which option correctly describes positive feedback? A) Plays the role of a stop sign, inhibiting a system. B) Acts as a guardian, helping reach a stable environment. C) It's like adding fuel to the fire, speeding up a warming trend. D) Like a thermostat, working to maintain homeostasis. Show Answer Correct Answer: C) It's like adding fuel to the fire, speeding up a warming trend. 47. % of toxins such as mercury that accumulate in the tissues of organisms as we go up the food pyramid. A) 50%. B) 1%. C) 100%. D) 10%. Show Answer Correct Answer: C) 100%. 48. Which gas makes up 78% of our atmosphere but can be used by plants only when transformed by bacteria first A) Carbon dioxide. B) Hydrogen. C) Oxygen. D) Nitrogen. Show Answer Correct Answer: D) Nitrogen. 49. Thermal pollution is the increase ..... caused by human activity and can cause aquatic life to suffer or die. A) Temperature. B) Land. C) Air. D) None of above. Show Answer Correct Answer: A) Temperature. 50. What are some common habitat management practices for waterfowl? A) Pesticide use, urban development, and noise pollution. B) Wetland restoration, vegetation management, and water level manipulation. C) Desert landscaping, deforestation, and soil erosion. D) Building construction, tree cutting, and air pollution. Show Answer Correct Answer: B) Wetland restoration, vegetation management, and water level manipulation. 51. What is characterized by high personal wealth and high levels of consumption? A) Ecology. B) Developing countries. C) Developed countries. D) Resource depletion. Show Answer Correct Answer: C) Developed countries. 52. Which of the following is known as the 'ultimate sink' of all natural and man-made pollutants? A) River. B) Ocean. C) Soil. D) All of the Above tagsEasy. Show Answer Correct Answer: B) Ocean. 53. Which is an example of a sustainable practice?I. Replanting a logged forestII. Developing substitutes for nonrenewable resourcesIII. Banning the use of all fossil fuels without a planned transition to an alternative A) I only. B) II only. C) I and III. D) I and II. E) I, II, and III. Show Answer Correct Answer: D) I and II. 54. Snakes eat many types of small mammals including mice and rabbits as well as other lizards. Snakes would best be classified as a- A) Herbivores. B) Omnivores. C) Carnivores. D) Producers. Show Answer Correct Answer: C) Carnivores. 55. Water is ins gas form is called ..... A) Air. B) Ice. C) Precipitation. D) Water Vapor. Show Answer Correct Answer: D) Water Vapor. 56. Subsurface ocean currents continually circulate from the warm waters near the equator to the colder waters in other parts of the world. What is the main cause of these current A) Differences in the topography along the ocean floor. B) Differences in density of ocean water. C) The rotation of Earth on its axis. D) Movement of the jet stream tagsSEV1. Show Answer Correct Answer: B) Differences in density of ocean water. 57. Scientists work exclusively in the ..... A) Natural World. B) Forest. C) Buildings. D) Environment. Show Answer Correct Answer: A) Natural World. 58. He is known as the father of wildlife management and developed the conservation ethic A) Theodore Roosevelt. B) Aldo Leopold. C) John Muir. D) Gifford Pinchot. Show Answer Correct Answer: B) Aldo Leopold. 59. Urban areas typically contain more A) Automobiles. B) Public transportation. C) Biodiversity. D) Open space. Show Answer Correct Answer: B) Public transportation. 60. The gas which has a major role in the greenhouse effect is? A) Methane. B) Carbon Monoxide. C) Carbon Dioxide. D) All of the Above tagsEasy. Show Answer Correct Answer: C) Carbon Dioxide. ← PreviousNext →Related QuizzesScience QuizzesGeneral Knowledge QuizzesEnvironmental Sciences Quiz 1Environmental Sciences Quiz 2Environmental Sciences Quiz 3Environmental Sciences Quiz 4Environmental Sciences Quiz 5Environmental Sciences Quiz 6Environmental Sciences Quiz 7Environmental Sciences Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books