1. Read the full article and talk about what the article explains about "there is fresh water under the sea" 2. How the undersea fountain is formed

1. The article focuses on "there is fresh water on the seabed" and explains that there is fresh water on the seabed and the amount is amazing, the two types of freshwater on the seabed, the theory of the source of freshwater on the seabed, the prospects for the development of freshwater on the seabed, etc. (The information is complete and the meaning is correct)

2. The terrestrial water-bearing structures extend to the seafloor water-bearing structures not far from the shore. The groundwater outlet is below the sea surface, and the water head pressure is very high. Groundwater spurts upward, forming an undersea fountain. (The information is complete and the meaning is correct.)

3. Example of infiltration theory; precipitation (rain and snow) seeps into the ground to form an aquifer and flows into the seafloor magma theory: the underground gassing zone releases oxygen and oxygen and Combined with each other

Settlement theory: The water in the sediment is squeezed out by gravity and brought deep into the formation (the information is complete. The meaning is correct.)

4. Example During the construction and drilling process, pollution to the marine environment must be minimized; development must be moderate and excessive exploitation is not allowed; care must be taken to avoid damage to the marine ecological environment near freshwater areas.