Looking at our Earth from space, it is obvious that we live on a water planet. Ocean covers over 70 percent of the Earth's surface and contains about 97 percent of the Earth's surface water. How much do you know about our ocean?
Soil moisture is the amount of water contained in the soil. From agriculture productivity to flood and drought prediction, soil moisture on Earth plays a key role in understanding our planet. How much do you know about Earth’s soil moisture?