1. Question 1 What is using water wisely to avoid wasting it called?
A. Saving
B. Wisation
C. Conservation
D. Desalination

2. Question 2
What is the process of obtaining freshwater from saltwater called?
A. Deforestation
B. Deoceanation
C. Desalination
D. Freshination

3. Question 3
Which of these examples uses water conservation and reduces water pollution?
A. factories making printing inks with water instead of chemical solvents
B. farmers using fewer pesticides in farm fields
C. factories reusing cooling water instead of returning it to a river
D. farmers planting fields with coarse grass that filter out pollutants

4. Question 4
Waves on the surface of the ocean are mostly caused by what?
A. Wind
B. Gravity
C. Tides
D. Tsunamis

5. Question 5 How often do high tides occur in most places?
A. Every 3 hours
B. Every 6 hours
C. Every 9 hours
D. Every 12 hours

6. Question 6 What are tides caused by? A. Wind B. Waves
C. Gravity from the moon
D. Gravity from the moon and sun

7. Question 7
What is a tide with the least difference between high and low tide called?
A. neap tide
B. spring tide
C. fall tide
D. leap tide

8. Question 8 What does salinity measure? A. The amount of ions in water
B. The amount of dissolved salts in water
C. The amount of fish in water.
D. The amount of undissolved salts in water

9. Question 9 What is the most abundant salt in seawater?
A. Sodium chloride
B. Magnesium chloride
C. Calcium chloride
D. Potassium chloride

10. Question 10
Which of the following areas in the ocean would have the lowest salinity?
A. a warm, tropical sea
B. the cold Arctic Ocean
C. a bay at the mouth of a big river
D. deep parts of the Pacific Ocean

11. Question 11 In which zone is the most dense ocean water found?
A. Intertidal Zone
B. Surface Zone
C. Transition Zone
D. Deep Zone

12. Question 12 What are deep currents caused by? A. Fish swimming B. Wind
C. Differences in density
D. Gravity

13. Question 13 What is a deep canyon in the ocean floor called?
A. A canyon
B. A trench
C. A mid-ocean ridge
D. A rift valley

14. Question 14
In which zone is ocean temperature most affected by weather?
A. Surface zone
B. Transition zone
C. Deep zone
D. Hydrothermal zone

15. Question 15
What is the continuous chain of underwater mountains called?
A. Mid-ocean ridge
B. Volcanic island chain
C. Seamounts
D. Abyssal plain

16. Question 16
What is the nearly flat region of the ocean floor covered with sediment called?
A. Abyssal Plain
B. Continental Shelf
C. Mid-ocean Ridge
D. Trench

17. Question 17 What marks the true edge of a continent? A. Abyssal Plain
B. Continental Shelf
C. Continental Slope
D. Continental Rise

18. Question 18
Which zone of the ocean receives enough sunlight to support the growth of algae?
A. Surface Zone
B. Transition Zone
D. Deep Zone
C. Trench Zone

19. Question 19
What is the gently sloping region that extends from the edge of a continent called?
A. Abyssal Plain
B. Continental Shelf
C. Continental Slope
D. Continental Rise

20. Question 20 What surface current affects the climate of England?
A. East Australian Current
B. Gulf Stream
C. Greenland Current
D. United Kingdom Current

21. Question 21 More than 97% of the Earth’s water is found where?
A. The oceans
B. The atmosphere
C. Lakes
D. Ice/Glaciers

22. Question 22 The energy that drives the water cycle comes from what?
A. Wind
B. Tides
C. Hurricanes
D. Sun

23. Question 23
More than two thirds of the Earth’s freshwater is found in what?
A. Atmosphere
B. Groundwater
C. Icecaps and glaciers
D. Lakes

24. Question 24
What is the process where plants release water into the atmosphere?
A. Accumulation
B. Condensation
C. Evaporation
D. Transpiration

25. Question 25
The process by which molecules at the surface of a liquid gain enough energy to change into a gas is called what?
A. Condensation
B. Evaporation
C. Precipitation
D. Transpiration

26. Question 26 Water that falls to the Earth as snow is called what?
A. Collection.
B. Condensation
C. Evaporation
D. Precipitation

27. Question 27
What is happening to the total amount of water on the Earth?
A. It is increasing.
B. It is decreasing.
C. It is staying about the same.
D. Freshwater is increasing but saltwater is decreasing.

28. Question 28
What needs to happen for a molecule to leave the ocean and enter the atmosphere?
A. It needs to gain energy
B. It needs to lose energy
C. It needs to keep the same amount of energy
D. It needs to have an energy party

29. Question 29 What is the Coriolis effect?
The rotation of the Earth causes currents to curve instead of traveling in a straight line