Hydrosphere

16. Which of the following is not a type of water pollution?
a) Thermal pollution
b) Chemical pollution
c) Plastic pollution
d) Solar pollution

17. What is the name of the process by which water dissolves minerals and other substances from rocks?
a) Erosion
b) Weathering
c) Deposition
d) Sedimentation

18. Which of the following is not a type of freshwater ecosystem?
a) River
b) Lake
c) Wetland
d) Ocean

19. Which of the following is not a type of ocean ecosystem?
a) Coral reef
b) Estuary
c) Abyssal plain
d) Swamp

20. What is the name of the process by which water is heated by the sun and rises to the surface?
a) Upwelling
b) Downwelling
c) Thermohaline circulation
d) Coriolis effect