How many types of landforms can we see in earth?

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

Where did Magellan's voyage end ?

Which is the layer of air that surrounds the earth?

From where did the voyage of Magellan start?

______________ is also called Akash Ganga.

The word planet is derived from a _________ word.

Who proved that the earth was round?

In early days,people thought that the shape of earth was ____________.

The point where the land and sea meet is called