Flight Duration 1 hour 40 mins. <i><b>Distance:</b></i><br /> The distance from Rome, Italy to Barcelona, Spain is <b>546 miles (879 km). <br /></b> The driving distance between Rome and Barcelona is <b>1,378 km</b> - about 12 hours 55 mins. <b><i>Flight:</i><br /></b>Rome (ROM) to Barcelona (BCN) <br /> Flight Duration <b>1 hour 40 mins</b>.
This crust is inorganic and is composed of minerals. It covers the entire surface of the earth from the top of Mount Everest to the bottom of the Mariana Trench. The hydrosphere is composed of all of the water on or near the earth. This includes the oceans, rivers, lakes, and even the moisture in the air. Ninety-seven percent of the earth's water is in the oceans. The remaining three percent is fresh water; three-quarters of the fresh water is solid and exists in ice sheets. The biosphere is composed of all living organisms. Plants, animals, and one-celled organisms are all part of the biosphere.
If Earth was the size of a basketball, all of its water would fit into a ping pong ball. How much water is that? It's roughly 326 million cubic miles (1.332 billion cubic kilometers), according to a recent study from the U.S. Geological Survey. Some 72 percent of Earth is covered in water, but 97 percent of that is salty ocean water and not suitable for drinking. There's not a lot of water on Earth at all, said David Gallo, an oceanographer at the Woods Hole Oceanographic Institution (WHOI) in Massachusetts.