Match List I with List II.
$$\begin{array}{|l|l|l|l|}\hline & \text{List I} & & \text{List II} \\ \hline \text{A.} & \text{Troposphere} & \text{I.} & \text{Approximately }65\text{–}75\ \text{km over earth's surface} \\ \hline \text{B.} & \text{E-part of stratosphere} & \text{II.} & \text{Approximately }300\ \text{km over earth's surface} \\ \hline \text{C.} & F_2\text{-part of thermosphere} & \text{III.} & \text{Approximately }10\ \text{km over earth's surface} \\ \hline \text{D.} & \text{D-part of stratosphere} & \text{IV.} & \text{Approximately }100\ \text{km over earth's surface} \\ \hline \end{array}$$
Choose the correct answer from the options given below:
Answer: (A) A-III, B-IV, C-II, D-I
Troposphere extends to about $10\ \text{km}$ (III); the D layer is at about $65$–$75\ \text{km}$ (I); the E layer at about $100\ \text{km}$ (IV); the $F_2$ layer at about $300\ \text{km}$ (II).
Solution by Sreeraj P, M.Sc Physics