The fixed revolution of the planets around the sun is called ______________.

_________________ is the smallest planet in our solar system.

How are craters made?

______________ planet is called Earth's sister?

____________ is also called as the ''Blue Planet''

_________________ is the heavenly body that orbits around a certain planet.

How many moons does Mars have?

______________ is the largest planet.

How many rings are present around Saturn.

Which planet is tilted the most.

Which planet is farthest away from the sun?

There are ______ layers in the Earth

___________ is the deepest layer.

______________ are the cracks or openings on the surface of Earth that let out molten rock.

Which of the following is an active volcano?

____________ volcanoes are volcanoes that are also called sleeping volcanoes.

How many volcanoes are there in the pacific ring of fire.