This quiz works best with JavaScript enabled. Home > Science > Earth > Environmental Sciences – Quiz 282 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Environmental Sciences Quiz 282 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Potential threat to an estuary A) Barnacle. B) Runoff. C) Coral reef. D) Open ocean. Show Answer Correct Answer: B) Runoff. 2. 38% of the earth's surface is used for ..... A) Cities. B) Parks and recreation. C) Agriculture and farming. D) Parking lots. Show Answer Correct Answer: C) Agriculture and farming. 3. ..... represents safe air quality on the Air Quality Index. A) Purple. B) Green. Show Answer Correct Answer: B) Green. 4. What is groundwater primarily used for? A) Manufacturing processes. B) Residential uses. C) Irrigation. D) Drinking. Show Answer Correct Answer: C) Irrigation. 5. Why can't humans survive on salt water alone? A) We can, but most people don't like the taste. B) It's heavily polluted. C) You will die of dehydration. D) We will use it up too quickly if we use it as drinking water. Show Answer Correct Answer: C) You will die of dehydration. 6. The gas found in the largest concentration in the troposphere is A) Nitrogen. B) Helium. C) Carbon dioxide. D) Oxygen. Show Answer Correct Answer: A) Nitrogen. 7. A distribution said to be symmetrical if the values are uniformity disturbed around the: A) Mean. B) Median. C) Mode. D) Mean deviation. Show Answer Correct Answer: A) Mean. 8. Which of these is NOT an example of how your community uses natural resources? A) Gasoline for public transportation. B) Trees to build furniture and houses. C) Chips and dip for watching a football game. D) Water for a community swimming pool. Show Answer Correct Answer: C) Chips and dip for watching a football game. 9. The human population experienced exponential growth just after A) Agriculture began. B) Plowing and irrigation began. C) The bubonic plague began. D) The Industrial Revolution began. Show Answer Correct Answer: D) The Industrial Revolution began. 10. A(n) ..... is a substance with a pH greater than 7. A) Base. B) Acid. C) Buffer. D) Water. Show Answer Correct Answer: A) Base. 11. The flow of heat from a warmer object to a colder object when the objects are placed in direct contact is known as? A) Convection. B) Conduction. C) Radiation. D) Erosion. Show Answer Correct Answer: B) Conduction. 12. This what protects Earth from harmful solar radiation A) Methane. B) Ozone layer. C) Fossil fuels. D) Volcanoes. Show Answer Correct Answer: B) Ozone layer. 13. The study of behavior-good/bad or right/wrong is called ..... A) Ethics. B) Culture. C) Worldview. D) Interpretations. Show Answer Correct Answer: A) Ethics. 14. When a community is stable with little to no change, what level of ecological succession is taking place? A) Primary succession. B) Secondary succession. C) Tertiary succession. D) Climax community. Show Answer Correct Answer: D) Climax community. 15. ..... :groups of trees which exhibit uniformity in size, age, structure and arrangement. A) Pre-commercial thinning. B) Prescribed burns. C) Silviculture. D) Stands. Show Answer Correct Answer: D) Stands. 16. It is the smallest unit of matter that retains all of the chemical properties of an element. A) Element. B) Molecule. C) Nucleus. D) Atom. Show Answer Correct Answer: D) Atom. 17. The worm grew by 2 centimetres. A) Qualitative. B) Quantitative. Show Answer Correct Answer: B) Quantitative. 18. Which zone of an aquatic ecosystem tend to have more life-both producers and consumers? A) Aphotic zone. B) Photic zone. C) Benthic zone. D) All have roughly the same amount of life. Show Answer Correct Answer: B) Photic zone. 19. During the period of human history known as the ....., human populationsgrew rapidly because of advances in farming methods. A) Industrial revolution. B) Agricultural revolution. C) Tragedy of the commons. D) Hunter-gatherer period. Show Answer Correct Answer: B) Agricultural revolution. 20. The average salinity of seawater by weight is A) .35 percent. B) 3.5 percent. C) 35 percent. D) None of these. Show Answer Correct Answer: B) 3.5 percent. ← PreviousNext →Related QuizzesScience QuizzesEnvironmental Sciences Quiz 1Environmental Sciences Quiz 2Environmental Sciences Quiz 3Environmental Sciences Quiz 4Environmental Sciences Quiz 5Environmental Sciences Quiz 6Environmental Sciences Quiz 7Environmental Sciences Quiz 8Environmental Sciences Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books