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Environment & Ecology Quiz

Environment & Ecology · Earth Science Quiz

20 questions · Unlimited attempts · Free online practice

The natural world is a complex web of life where every organism, from tiny insects to towering trees, plays an important role. Environment and ecology help us understand how living...

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All 20 questions in this Environment & Ecology quiz
  1. Which process is primarily responsible for the 'dead zone' in the Gulf of Mexico every summer?

    • A. Oil drilling leaks
    • B. Siltation from deforestation
    • C. Nutrient runoff from agriculture
    • D. Thermal pollution from power plants
  2. Which type of habitat restoration focuses on reintroducing apex predators and allowing natural processes to take over with minimal human intervention?

    • A. Afforestation
    • B. Rewilding
    • C. Xeriscaping
    • D. Permaculture
  3. What is the term for the process by which toxic substances, such as mercury or DDT, become more concentrated in the tissues of organisms as you move up the food chain?

    • A. Eutrophication
    • B. Bioaccumulation
    • C. Biomagnification
    • D. Nitrogen Fixation
  4. What is 'Bioremediation'?

    • A. The use of technology to build better parks
    • B. The use of living organisms like bacteria or fungi to break down or remove environmental pollutants
    • C. A way to grow food in zero gravity
    • D. The study of how animals heal themselves
  5. In the context of the atmosphere, what is 'Global Dimming'?

    • A. The darkening of the moon during an eclipse
    • B. The reduction in the amount of solar radiation reaching the Earth's surface due to particulate pollution
    • C. The natural cooling of the Earth every 100 years
    • D. A way to make streetlights more efficient
  6. What is 'Composting'?

    • A. Filtering water
    • B. Mining coal
    • C. Burning trash
    • D. Recycling organic waste
  7. Which term refers to the variety of genes within a single population or species?

    • A. Species Diversity
    • B. Ecosystem Diversity
    • C. Genetic Diversity
    • D. Taxonomic Diversity
  8. Which sustainable development goal (SDG) specifically focuses on taking urgent action to combat climate change and its impacts?

    • A. SDG 7 (Clean Energy)
    • B. SDG 13 (Climate Action)
    • C. SDG 14 (Life Below Water)
    • D. SDG 15 (Life on Land)
  9. Which environmental concept encourages a production and consumption model that involves sharing, leasing, reusing, and recycling existing materials for as long as possible?

    • A. Linear Economy
    • B. Command Economy
    • C. Circular Economy
    • D. Free Market Economy
  10. Which of the following is considered an 'Indicator Species' because its presence or health reflects the overall condition of its environment?

    • A. Common Cockroach
    • B. Lichens
    • C. Domestic Cat
    • D. Pigeons
  11. In the context of biodiversity, what is a 'Hotspot'?

    • A. An area with active volcanoes
    • B. A region with high species richness that is also under significan't threat from human activity
    • C. A place where the average temperature is rising faster than the global average
    • D. An area designated for high-density eco-tourism
  12. Which of these is a major environmental benefit of 'Vertical Farming' in urban areas?

    • A. It uses more pesticides
    • B. It significan'tly reduces the 'food miles' and water usage required to grow produce
    • C. It requires more land than traditional farming
    • D. It only works during the summer
  13. Which class of pesticides has been heavily linked to the decline of honeybee populations and was largely banned by the EU in 2018?

    • A. Organophosphates
    • B. Neonicotinoids
    • C. Pyrethroids
    • D. Carbamates
  14. What is the primary cause of 'coral bleaching' on a global scale?

    • A. Toxic waste from ships
    • B. Rising ocean temperatures
    • C. An increase in the number of sharks
    • D. Too much salt in the water
  15. What is the term for the process where a body of water becomes enriched with dissolved nutrients, often causing a 'bloom' of aquatic plant life?

    • A. Eutrophication
    • B. Acidification
    • C. Oxygenation
    • D. Oligotrophication
  16. What is the name for the large-scale accumulation of plastic debris in the North Pacific Ocean, estimated to be twice the size of Texas?

    • A. The Sargasso Sea
    • B. The Mariana Trench
    • C. The Great Pacific Garbage Patch
    • D. The Gulf Stream
  17. Which environmental regulation, passed in the US in 1970, led to the creation of the Environmental Protection Agency (EPA)?

    • A. The Clean Air Act
    • B. The Endangered Species Act
    • C. The National Environmental Policy Act (NEPA)
    • D. The Safe Drinking Water Act
  18. What is the name for the practice of agriculture that focuses on restoring soil health, increasing biodiversity, and capturing carbon?

    • A. Monoculture
    • B. Hydroponics
    • C. Regenerative Agriculture
    • D. Vertical Farming
  19. What is 'E-waste'?

    • A. Egg waste
    • B. Earth waste
    • C. Electronic waste
    • D. Energy waste
  20. In an energy pyramid, why does the amount of available energy decrease as you move up each level?

    • A. The animals at the top are lazier
    • B. Energy is lost as heat during metabolic processes
    • C. The sun's energy only reaches the bottom level
    • D. Higher-level animals eat less frequently