Earth is at least ____ billion years old.

The Earth is the _____ planet away from the Sun.

The Earth has an ____ rich atmosphere.

The flat bottom is called the _____ pole

The green colour of the earth shows _____

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

The earth is surrounded by a blanket of air called _____

The movement of the Earth around its axis is called _____

The earth is slightly ______ at the top and at the bottom.

_____ is the Blue planet