In this section, each item consists of six sentences of a passage. The first and sixth sentences are given as SI and S6. The middle four sentences in each have been jumbled up and labelled as P, Q, R and S. You are required to find the proper sequence of the four sentences and mark your response accordingly.

S1: In everyday life, we see some objects at rest and others in motion.

P: Birds fly, fish swim, blood flows through veins and arteries, and cars move. 

Q:  Apart from living bodies, atoms, molecules, planets, stars and galaxies are all in motion.

R: We often perceive an object to be in motion when the position of these bodies changes with time.

S: However, there are situations where the motion is inferred through indirect evidence.

S6 For example, we infer the motion of air by observing the movement of dust and the movement of leaves and branches of trees.