Question

Arrange the following inner planets in the correct order, starting from the Sun.

• A. Mercury
• B. Venus
• C. Earth
• D. Mars

Answer 1

Inner planets are the planets closer to the Sun, and have their crusts made of rocky and metallic material. For this reason, they are also called terrestrial planets, i.e. planets that resemble terra (Latin: Earth) in structural composition.
Mercury is the closest terrestrial planet to the Sun, followed by Venus and then, Earth. Mars is the fourth and the last member of inner planet family.