SSC JE Electrical Engineering 2017 Set 2 Paper

Consider the following pairs:
Event : Time interval (Seconds)
1. Period of X-rays :10${}^{\mathit{–}8}$
2. Life time of an excited state of an atom : 10${}^{\mathit{–}1}$
3. Time between successive human heartbeats : 10${}^0$
4. Rotation period of the earth : 10${}^5$
Which of the above pairs are correctly matched?