Environmental Sciences Quiz 583 (20 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. Under which condition are large numbers of fish in a lake likely to die?

Correct Answer: A) When the water's dissolved oxygen is low and temperature is high.

2. Shells and crabs are hurt by an increase in ocean acidity because it ..... their shell, making them vulnerable to predators and diseases.

Correct Answer: A) Weakens.

3. What is the normal amounts of ozone in the atmosphere?

Correct Answer: D) 300.

4. Carbon is used to make sugars (chemical energy) in which step of the carbon cycle?

Correct Answer: D) Photosynthesis.

5. Germs cause diseases in living organisms.

Correct Answer: B) Theory.

6. A material that cannot break down naturally.

Correct Answer: B) Nonbiodegradable.

7. A species whose numbers have fallen so low that it is likely to become extinct in the near future

Correct Answer: A) Endangered species.

8. Which is NOT one of the Physical layers of the Earth?

Correct Answer: C) Asthenosphere.

9. Economic considerations are not involved with environmental decisions

Correct Answer: B) FALSE.

10. The system of classifying living things into categories

Correct Answer: D) Taxonomy.

11. These are called seasonal plants.

Correct Answer: B) Herbs.

12. Why is more atmospheric carbon dioxide bad

Correct Answer: C) The gas inhibits the escape of heat from the earths atmosphere.

13. Water diversion projects may involve the movement of water to dry regions using

Correct Answer: A) Canals.

14. Where is 97% of the Earth's water located?

Correct Answer: C) Oceans.

15. In the United States, most people live in ..... areas.

Correct Answer: A) Urban.

16. An area where freshwater feeds into saltwater.

Correct Answer: C) Estuaries.

17. Which was the first book that helped the public become more environmentally aware?

Correct Answer: B) Silent Spring by Rachel Carson.

18. When all the resources are used and no more resources such as space or food are available, a ..... must stop growing.

Correct Answer: C) Population.

19. What are the 3 key ingredients needed for photosynthesis

Correct Answer: D) Sunlight, water, carbon dioxide.

20. In which layer do virtually all-weather phenomena take place?

Correct Answer: D) Troposphere.