MCQs for Module 1: What is Environmental Science?

Created: February 03, 2026 | Passing Score: 80%

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Questions

1. 1. What makes environmental science unique compared to other sciences?
Type: Multiple Choice | Difficulty: medium
  • A: It studies only plants and animals
  • B: It focuses only on pollution problems
  • C: It is interdisciplinary, combining many fields of study
  • D: It studies only human activities
2. 2. Which branch of science would help identify the source of pollution in a lake?
Type: Multiple Choice | Difficulty: medium
  • A: Biology
  • B: Chemistry
  • C: Geography
  • D: Economics
3. 3. In the scientific method, what comes immediately after forming a hypothesis?
Type: Multiple Choice | Difficulty: medium
  • A: Conclude
  • B: Test (Experiment)
  • C: Analyze
  • D: Communicate
4. 4. A scientist notices fewer bees in certain areas and guesses pesticides may be the cause. This guess is called a:
Type: Multiple Choice | Difficulty: medium
  • A: Theory
  • B: Hypothesis
  • C: Data point
  • D: Observation
5. 5. Who among the following could be hired to help a company reduce its environmental impact?
Type: Multiple Choice | Difficulty: medium
  • A: Park Ranger
  • B: Wildlife Biologist
  • C: Environmental Consultant
  • D: Climate Scientist
6. 6. Systems thinking in environmental science means:
Type: Multiple Choice | Difficulty: medium
  • A: Studying each part separately
  • B: Looking at the whole picture and connections
  • C: Ignoring human activities
  • D: Focusing only on animals
7. 7. Which of the following is an example of a positive feedback loop?
Type: Multiple Choice | Difficulty: medium
  • A: More rabbits → Less grass → Fewer rabbits → Grass recovers
  • B: More ice melts → Less reflection of sunlight → More heat absorbed → More ice melts
  • C: Trees cut down → Soil erosion → Replanting trees → Soil stabilizes
  • D: More rain → More water in rivers → Floods → Evacuation of people
8. 8. The four Earth systems include all EXCEPT:
Type: Multiple Choice | Difficulty: medium
  • A: a) Atmosphere
  • B: Biosphere
  • C: Lithosphere
  • D: Hydrosphere
9. 9. Cutting down forests can lead to all of the following EXCEPT:
Type: Multiple Choice | Difficulty: medium
  • A: Soil erosion
  • B: More rain
  • C: Loss of animal habitats
  • D: Decreased air quality
10. 10. A forest where trees provide oxygen, animals spread seeds, and rain nourishes plants is an example of:





Answer: c) An interconnected system
Type: Multiple Choice | Difficulty: medium
  • A: A controlled experiment
  • B: An isolated system
  • C: An interconnected system
  • D: A positive feedback loop
11. 11. The book Silent Spring by Rachel Carson was significant because it:
Type: Multiple Choice | Difficulty: medium
  • A: Started the National Park Service
  • B: Raised awareness about pesticide pollution
  • C: Banned the use of DDT globally
  • D: Introduced the idea of climate change
12. 12. The Cuyahoga River caught fire in 1969 because of:
Type: Multiple Choice | Difficulty: medium
  • A: Oil drilling
  • B: Excessive waste dumping
  • C: Severe drought Answer
  • D: Volcanic activity
13. 13. The Montreal Protocol (1987) focused on:
Type: Multiple Choice | Difficulty: medium
  • A: Reducing plastic waste
  • B: Protecting endangered species
  • C: Protecting the ozone layer
  • D: Limiting deforestation
14. 14. Who is known as the “Father of National Parks”?
Type: Multiple Choice | Difficulty: medium
  • A: John Muir
  • B: Theodore Roosevelt
  • C: Jane Goodall
  • D: Wangari Maathai
15. 15. Wangari Maathai’s Green Belt Movement mainly focused on:





Answer: b) Planting trees and empowering women
Type: Multiple Choice | Difficulty: medium
  • A: Protecting chimpanzees
  • B: Planting trees and empowering women
  • C: Fighting climate change treaties
  • D: Banning pesticides
16. 16. Which of the following is a biotic factor?
Type: Multiple Choice | Difficulty: medium
  • A: Rocks
  • B: Temperature
  • C: Bacteria
  • D: Sunlight
17. 17. The long-term weather patterns of an area are called:
Type: Multiple Choice | Difficulty: medium
  • A: a) Climate
  • B: b) Ecosystem
  • C: c) Habitat
  • D: d) Weather
18. 18. Which of the following is a renewable natural resource?
Type: Multiple Choice | Difficulty: medium
  • A: a) Coal
  • B: b) Oil
  • C: c) Trees
  • D: d) Natural gas
19. 19. A testable educated guess in science is called a:
Type: Multiple Choice | Difficulty: medium
  • A: a) Law
  • B: b) Data
  • C: c) Hypothesis
  • D: d) Theory
20. 20. “Meeting today’s needs without harming future generations” best defines:
Type: Multiple Choice | Difficulty: medium
  • A: a) Biodiversity
  • B: b) Sustainability
  • C: c) Conservation
  • D: d) Pollution
21. 21. Which of the following activities would result in the LOWEST carbon footprint?
Type: Multiple Choice | Difficulty: medium
  • A: a) Eating a hamburger
  • B: b) Driving to school alone
  • C: c) Walking to school
  • D: d) Leaving a computer on all night
22. 22. Which of the following is an example of collective responsibility?





Answer: c) Advocating for renewable energy laws
Type: Multiple Choice | Difficulty: medium
  • A: a) Taking shorter showers
  • B: b) Turning off lights
  • C: c) Advocating for renewable energy laws
  • D: d) Eating less meat
23. 23. The decomposition time of a single-use plastic water bottle is approximately:




Answer: b) 450 years
Type: Multiple Choice | Difficulty: medium
  • A: a) 45 years
  • B: b) 450 years
  • C: c) 1,000 years
  • D: d) 50 days
24. 24. Which of the following is NOT part of an environmental footprint?





Answer: d) Cellular footprint
Type: Multiple Choice | Difficulty: medium
  • A: a) Carbon footprint
  • B: b) Water footprint
  • C: c) Waste footprint
  • D: d) Cellular footprint
25. 25. Which choice demonstrates sustainable consumption?
Type: Multiple Choice | Difficulty: medium
  • A: a) Buying packaged food every day
  • B: b) Using a reusable water bottle
  • C: c) Leaving lights on overnight
  • D: d) Throwing away clothes after one use
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