How many years did it take to end the voyage of Magellan?

One fourth of earth's surface is _________.

The __________ is made up of extremely hot gases and produces its own heat and light.

Which is the layer of air that surrounds the earth?

______________ is also called Akash Ganga.

The line at which the earth and the sky seems to meet is called the ________.

The sun is also a ___________.

The solar system is a family of _______ planets.

__________ has the right mixture of oxygen and carbondioxide for animals and plants.

From where did the voyage of Magellan start?