In the questions below, each passage consists of six sentences. The first and sixth sentences are given in the beginning as (S1) & (S6) respectively. The middle four sentences of each passage have been removed and jumbled up. These are labeled as P, Q, R and S. Find out the proper order for the four sentences. S1: Growing up means not only getting larger, but also using our sense and our brain to become more aware of things around us. S6: In other words, we must develop and use our ability to reason, because the destruction or the preservation of the places in which we live depend on us. P: Not only does he have a memory but he is also able to think and reason. Q: In this, man differs from all other animals. R: Before we spray our roadside plants or throw sewage into our rivers, we should pause to think what the results of our action are likely to be. S: This is to say, he is able to plan what he is going to do in the light of his experience before he does it. The proper sequence should be: