Question

Chronologically, arrange the given Eras of geological history of the Earth. \[ \begin{aligned} A.&\ \text{Cenozoic} B.&\ \text{Palaeozoic} C.&\ \text{Mesozoic} D.&\ \text{Precambrian} \end{aligned} \] Choose the correct answer from the options given below:

• A. A, D, B, C
• B. D, B, C, A
• C. B, D, A, C
• D. D, C, B, A

Hint:

Geological time scale: \[ \boxed{ \text{Precambrian} < \text{Palaeozoic} < \text{Mesozoic} < \text{Cenozoic} } \] Mnemonic: “Please Play Music Carefully.”

Answer 1

The Correct Option is B

Concept: The geological eras from oldest to youngest are: \[ \boxed{ \text{Precambrian} \rightarrow \text{Palaeozoic} \rightarrow \text{Mesozoic} \rightarrow \text{Cenozoic} } \]

Step 1: Arrange chronologically. \[ \boxed{ D \rightarrow B \rightarrow C \rightarrow A } \] Hence, \[ \boxed{\text{(B)}} \]