Online Quiz

1. The two main types of desalination are thermal and reverse osmosis.

  • True
  • False
True

2. The oldest form of desalination is reverse osmosis.

  • True
  • False
False

3. Brine has less salt than seawater.

  • True
  • False
False

4. Overall, seawater desalination plants are producing more brine than fresh water.

  • True
  • False
True

5. Seawater desalination alone will not meet the rising demands for drinkable water.

  • True
  • False
True

6. According to this article, what is desalination?

  • When you remove salt from water.
  • When rain mixes with seawater.
  • When you drink salt water.
  • When you add salt to water
When you remove salt from water.

7. What word is closest in meaning to improbability?

  • unknown
  • absurdity
  • difficult
  • uncertainty
uncertainty

8. When and where was the reverse osmosis desalination method developed?

  • 2011, San Diego
  • 1850, London
  • 1950s, UCLA
  • 1975, Paris
1950s, UCLA

9. What word is the opposite in meaning to deficit?

  • loss
  • benefit
  • debt
  • cost
benefit

10. According to the author, what should be part of our educational curriculum?

  • Water conservation methods and why we need to conserve water.
  • How to desalinate seawater.
  • The environmental impacts of seawater desalination.
  • How much drinkable water we have.
Water conservation methods and why we need to conserve water.

11. How much water on Earth is drinkable?

  • Less than 50%
  • Most
  • None
  • Less than 1%
Less than 1%

12. It is projected that by 2050, ______ of our global population will be living in water scarce areas. (Fill in the blank with the correct answer).

  • most
  • half
  • all
  • 25%
half

13. How many gallons of water per day does the average person in the United States use?

  • 80-100
  • 200-300
  • 50-80
  • 20-40
80-100

14. What word is closest in meaning to viable?

  • hopeless
  • possible
  • improbable
  • successful
possible

15. What are the two main environmental impacts of seawater desalination? Select all that apply.

  • The energy cost can still be 25 times greater than that of other methods.
  • The amount of power needed has declined dramatically in the past 40 years.
  • Seawater intake pipes can trap or kill marine life.
  • Brine can harm marine life at the bottom of the ocean.
Seawater intake pipes can trap or kill marine life.Brine can harm marine life at the bottom of the ocean.
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