Greatest Natural Wonders Of The World
Our earth has a lot of amazing and really wonderful creation of GOD. Each nation have their own unique and Natural wonders to be known. Here are the 7 greatest natural wonders of the world. Please take a look.. AURORA: "Northern Lights" An aurora is a natural light display in the sky, particularly in the polar regions, caused by the collision of charged particles directed by the Earth's magnetic field. An aurora is usually observed at night and typically occurs in the ionosphere. It is also referred to as polar lights. These phenomena are commonly visible between 60 and 72 degrees north and south latitudes,these are infrequent and often invisible to the naked eye. In northern latitudes, the effect is known as the aurora borealis (or the northern lights).The chance of visibility of the aurora borealis increases with proximity to the North Magnetic Pole. The aurora borealis most often occurs near the equinoxes. The northern lights have had a number o...