The only natural satellite of the Earth is _____

The movement of the Earth around Sun in an elliptical orbit is called _____

The movement of the Earth around its axis is called _____

Earth is at least ____ billion years old.

The Moon takes _____ days to complete one revolution around the Earth.

_____ is the only celestial body apart from the earth, that humans have stood on.

The Earth has an ____ rich atmosphere.

The flat bottom is called the _____ pole

The rotation of the Earth on its causes ____ and ____

The imaginary line joining the North pole and the South pole is called the _____