The Ocean
NASA
Looking at our Earth from space, it is obvious that we live on a water planet. Ocean covers over 70 percent of Earth's surface and contains about 97 percent of Earth's surface water. How much do you know about our ocean?
Answer questions like ...
- Most of the Earth's water is found in:
- What is sea surface salinity?
- Which of these has a greater effect on global sea level?
Use the green Start Show button above to start playing!
