S1: We and all other animals breathe in and breathe out air all the time. P: If we stop breathing, we die. Q: It is because of this fact that we are able to live. R: It is called the atmosphere. S: All parts of the earth are surrounded by air. S6: It is a part of the earth. The Proper sequence should be: A. PQRS B. PRQS C. QPSR D. SRQP

[amp_mcq option1=”PQRS” option2=”PRQS” option3=”QPSR” option4=”SRQP” correct=”option2″]

The correct answer is: B. PRQS

The correct sequence is:

1. All parts of the earth are surrounded by air. (S)
2. It is called the atmosphere. (R)
3. It is because of this fact that we are able to live. (Q)
4. We and all other animals breathe in and breathe out air all the time. (S1)
5. If we stop breathing, we die. (P)

The first sentence states that all parts of the earth are surrounded by air. The second sentence states that this air is called the atmosphere. The third sentence states that it is because of the atmosphere that we are able to live. The fourth sentence states that we and all other animals breathe in and breathe out air all the time. The fifth sentence states that if we stop breathing, we die.

The other options are incorrect because they do not follow the correct sequence of events. Option A, PQRS, is incorrect because it puts the second sentence before the first sentence. Option C, QPSR, is incorrect because it puts the third sentence before the second sentence. Option D, SRQP, is incorrect because it puts the fifth sentence before the first sentence.