Ocean Salinity Quiz

10 Questions | By Mantony | Updated: Mar 21, 2022 | Attempts: 1409

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What are the major factors that determine ocean salinity? Well, if you don’t know, evaporation is one of them. The quiz below will help you better understand the other factors and more on ocean salinity. Enjoy the quiz.

Questions and Answers

1.

1) Where does the major part of salt in the Oceans come from?
- A.
  
  A) Sea
- B.
  
  B) Land
- C.
  
  C) Water
- D.
  
  D) Acid rain
2.

2) How did salt end up in our Oceans?
- A.
  
  A) Salt was always present in Oceans.
- B.
  
  B) Acid rain falls into the Ocean. It contains Salts.
- C.
  
  C) Volcanoes let out salt when they erupt.
- D.
  
  D) Over millions of years, rains, rivers and streams have washed over rocks carrying away salt into the Ocean
3.

3) What is the common name for Sodium Chloride?
- A.
  
  A) Table salt
- B.
  
  B) Sea salt
- C.
  
  C) Rock salt
- D.
  
  D) Water salt
4.

4) What are Hydrothermal vents?
- A.
  
  A) Openings in the earth's crust which continuously let out mineral-rich, hot water.
- B.
  
  B) Openings in the earth's crust that let out cold and mineral deprived water.
- C.
  
  C) Openings in the earth's crust that allows the flow of lava.
- D.
  
  D) Openings in the earth's crust that let out toxic gases.
5.

5) All bodies of salt have the same amounts of salinty.
- A.
  
  A) True
- B.
  
  B) False
6.

6) The salinity in water is measured by ppt. Ppt stands for:
- A.
  
  A) Parts pertaining titanium
- B.
  
  B) Parts per tens
- C.
  
  C) Parts per thousand
7.

7) The average salinity of Oceans is:
- A.
  
  A) 45 ppt
- B.
  
  B) 1000 ppt
- C.
  
  C) 15 ppt
- D.
  
  D) 35 ppt
8.

8) The salinity levels of freshwater is usually less than
- A.
  
  A) 0.5 ppt
- B.
  
  B) 1 ppt
- C.
  
  C) 0.7 ppt
- D.
  
  D) 0.9 ppt
9.

9) What is brackish water?
- A.
  
  A) Water between 10 ppt and 11 ppt.
- B.
  
  B) Water between 0.5 ppt and 17 ppt
- C.
  
  C) Water between 0.4 ppt and 0.9 ppt
- D.
  
  D) Water between 0.1 ppt and 0.5 ppt
10.

10) If humans drink Ocean water what happens to their bodies?
- A.
  
  A) Dehydration. Cells and organs cannot function properly.
- B.
  
  B) Blood pumps salt into the heart and causes heart failure.
- C.
  
  C) Salt increases body temperature.
- D.
  
  D) Stops blood circulation