This quiz works best with JavaScript enabled. Home > Science > Environmental Sciences – Quiz 86 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Environmental Sciences Quiz 86 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following is an example of how biogeochemical cycles are important in sustaining life? A) The atoms of water molecules are destroyed during a drought. B) Oxygen atoms are converted into carbon during cellular respiration. C) Nitrogen in wastes are converted into useable nutrients for other organisms. D) New carbon atoms are created during the carbon cycle. Show Answer Correct Answer: C) Nitrogen in wastes are converted into useable nutrients for other organisms. 2. Which statement is an example of mutualism? A) Bees sting other organisms when they sense danger. B) Bees pollinate flowers while obtaining nectar. C) Bees have black and yellow stripes that warn other organisms of danger. D) Bees help maintain an ecosystem's native cacti species through pollination. Show Answer Correct Answer: B) Bees pollinate flowers while obtaining nectar. 3. A geologic process in which one edge of one crustal plate is forced below the edge of another. A) Convection. B) Geological Time. C) Continental Drift. D) Subduction. E) Erosion. Show Answer Correct Answer: D) Subduction. 4. Which of the following appears last? A) Grass. B) Bushes. C) Softwoods (conifers). D) Hardwoods (Maple, Oak, etc). Show Answer Correct Answer: D) Hardwoods (Maple, Oak, etc). 5. WHAT IS THE IDEAL PERCENTAGE OF FOREST COVER REQUIRED ON THE EARTH SURFACE? A) 93. B) 28. C) 76. D) 33. Show Answer Correct Answer: D) 33. 6. The agricultural revolution improved farming practices but led to other problems like A) Deforestation. B) Obesity. C) Air pollution. D) Pestilence. Show Answer Correct Answer: A) Deforestation. 7. Which kind of organisms are decomposers? A) Bacteria & Fungi. B) Fungi & Insects. C) Insects & Bacteria. D) Worms. Show Answer Correct Answer: A) Bacteria & Fungi. 8. Non-biodegradable is: A) Can be broken down. B) Cant be broken down. Show Answer Correct Answer: B) Cant be broken down. 9. What adaptation prevents phytoplankton from sinking into deep waters? A) Whiskers. B) Streamlined body shape. C) Flagella. D) Tentacles. Show Answer Correct Answer: C) Flagella. 10. What does a paleoclimatologist study? A) Life. B) Atoms. C) Climates. D) Kinetic and Potential Energy. Show Answer Correct Answer: C) Climates. 11. Certain gases in the atmosphere-water vapor, carbon dioxide, methane and nitrous oxide-help maintain the Earth's temperatures and climate. These are called: ..... A) Ozone gases. B) Solar gases. C) Greenhouse gases. D) Stomach gases. Show Answer Correct Answer: C) Greenhouse gases. 12. Protein A) A compound that does not contain the element carbon or contains carbon bound to elements other than hydrogen. B) A compound that contains carbon-carbon and carbon-hydrogen bonds. C) A compound composed of carbon, hydrogen and water molecules. D) A critical component for life, made up of long chain of nitrogen-containing organic molecules known as amino acids. Show Answer Correct Answer: D) A critical component for life, made up of long chain of nitrogen-containing organic molecules known as amino acids. 13. Listing both the merits and expenses involved in implementing a particular environmental solution is an example of a(n) A) Cost-benefit analysis. B) Risk assessment. C) Ecological footprint. D) Market equilibrium. Show Answer Correct Answer: A) Cost-benefit analysis. 14. Which of these are sense organs? A) Rib, Bone, Torso, Taste bud & head. B) Arms, Legs, Curved bones, Abdomen and Lungs. C) Eye, Ear, Nose, Tongue, Skin. D) Brain, Upper Limbs, Lower Limbs, Shoulder and nose. Show Answer Correct Answer: C) Eye, Ear, Nose, Tongue, Skin. 15. An area in which fresh water from a river mixes with salt water from the ocean A) Mangrove Swamp. B) Estuary. C) Marshes. D) Wetland. Show Answer Correct Answer: B) Estuary. 16. The uppermost layer of an aquatic ecosystem, where there is enough sunlight for photosynthesis to occur, is called the ..... zone. A) Limnetic. B) Aphotic. C) Photic. D) Benthic. Show Answer Correct Answer: C) Photic. 17. We're talking ..... pollution. A) To. B) With. C) In. D) About. Show Answer Correct Answer: D) About. 18. The price at which a good is bought and sold in a market equilibrium is called A) Retail price. B) Equilibrium price. C) Discount price. D) Base price. Show Answer Correct Answer: B) Equilibrium price. 19. Greenhouse gases in the Earth's atmosphere A) Are in steady state. B) Are decreasing. C) Are increasing. D) Can not be measured. Show Answer Correct Answer: C) Are increasing. 20. What is a major effect to the environment of combusting (burning) plastic? A) It releases toxic chemicals and fumes. B) It is smelly. C) It is an eyesore. D) Animals step on and it is hot so it will damage their paws. Show Answer Correct Answer: A) It releases toxic chemicals and fumes. ← PreviousNext →Related 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 9Environmental Sciences Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books