This quiz works best with JavaScript enabled. Home > Science > Environmental Sciences – Quiz 15 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Environmental Sciences Quiz 15 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of Earth's spheres includes all of the water on Earth (including fresh and salt water, as well as water in the air and underground)? A) Geosphere. B) Hydrosphere. Show Answer Correct Answer: B) Hydrosphere. 2. How has global warming made it more difficult for polar bears to hunt the seals they feed on? A) The population of seals has declined. B) Polar bears are forced to swim longer distances between ice sheets. C) Seals now have more places to hide. D) Polar bears are now being hunted more by other predators. Show Answer Correct Answer: B) Polar bears are forced to swim longer distances between ice sheets. 3. Which gas is removed from the atmosphere during photosynthesis? A) Hydrogen. B) Oxygen. C) Nitrogen. D) Carbon dioxide. Show Answer Correct Answer: D) Carbon dioxide. 4. Which gas/gases are considered to be a greenhouse gas? A) Water vapor. B) Carbon dioxide. C) Methane. D) All are greenhouse gases. Show Answer Correct Answer: D) All are greenhouse gases. 5. Which one of the following is an environmental effect of globalization? A) Easy spread of invasive species. B) Climate change. C) Stronger enforcement of environmental laws in most countries. D) None of above. Show Answer Correct Answer: A) Easy spread of invasive species. 6. Which of the following is a way humans negatively affect other species? A) Hunting. B) Poaching. C) Framing Habitats. D) All of the Above. Show Answer Correct Answer: D) All of the Above. 7. Which is a developing country? A) The United States. B) France. C) Great Britain. D) India. Show Answer Correct Answer: D) India. 8. All the living communities in an area PLUS the abiotic factors. A) Population. B) Ecosystem. C) Biome. D) Habitat. Show Answer Correct Answer: B) Ecosystem. 9. When a group of foxes moves to a new environment, a change in which of the following is least likely to be a selective pressure on the foxes? A) Food sources. B) Predator populations. C) Decomposers. D) Temperatures. Show Answer Correct Answer: C) Decomposers. 10. Which organism returns elements back into the soil? A) Decomposers. B) Herbivores (rabbits). C) Plants. D) Root bacteria. Show Answer Correct Answer: A) Decomposers. 11. This part of the plant supports it and carries water. A) Root. B) Stem. C) Leaf. D) Seed. Show Answer Correct Answer: B) Stem. 12. The study of the interactions of living organisms with one another and their environment. A) Biology. B) Ecology. C) Environmental Science. D) Social Science. Show Answer Correct Answer: B) Ecology. 13. Organism that anchors itself to grasses or rocks A) Coral reef. B) Barncle. C) Plankton. D) Nekton. Show Answer Correct Answer: B) Barncle. 14. A compound that is suspected to cause acid rain A) Chloride. B) Carbon. C) Sulfur dioxide. D) Oxygen. Show Answer Correct Answer: C) Sulfur dioxide. 15. Why are sea otters so crucial to an ecosystem? A) They aren't. B) They build dams and help rivers flow. C) They provide us with nutrients. D) They feed on sea urchins which are harmful to kelp forests. Show Answer Correct Answer: D) They feed on sea urchins which are harmful to kelp forests. 16. Which of the following best describes a renewable resource? A) A natural resource that can be burned for energy. B) A natural material that is not replaced as it is used up. C) A natural material that is always available or replenishes itself within a short amount of time. D) A natural material that takes millions of years to replenish itself (not within a lifetime). Show Answer Correct Answer: C) A natural material that is always available or replenishes itself within a short amount of time. 17. Which organism might be at the top of the food chain in a deciduous forest? A) Eagle. B) Frog. C) Deer. D) None of above. Show Answer Correct Answer: A) Eagle. 18. Temperature extremes and catastrophic natural disasters are all factors of A) Density independent factors. B) Density dependent factors. Show Answer Correct Answer: A) Density independent factors. 19. Deforestation is the greatest problem may arise on the principle of Interdependence. A) True. B) False. Show Answer Correct Answer: A) True. 20. What is an adaptation for a desert? A) Fur. B) Nocturnal. C) Large leaves. D) Losing leaves. Show Answer Correct Answer: B) Nocturnal. ← 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