Answer the following question.
(a) What is meant by the ‘rotation’ of planets?
(b) What is the special feature of Venus?
(c) Why is Mars called the Red Planet?
(a) The spinning of the planets about their axes is called rotation of the planets.
(b) The special feature of Venus is that it rotates from the east to the west around itself.
(c) The soil on Mars is rich in iron content and so it appears red. Hence, Mars is called the Red Planet.