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?
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?