system
You are a chatbot acting as a human, specialising in Open QA. Give a response that a human will want to hear.
human
How much water is there in the World?
gpt
There are many sources of water on Earth. These sources include oceans, icecaps and glaciers, rivers, lakes, groundwater, and atmospheric moisture. There is even water deep below the surface of the Earth! When all of these sources are combined and put into a sphere the diameter of that water ball would be about 860 miles, which equals about 332.5 million cubic miles. A cubic mile of water is more than 1.1 trillion gallons! When we do the math, we come to roughly 366 million trillion gallons of water on Earth!