Question

Cretaceous, Jurassic and Triassic periods are included in the ________ era.

• A. Palaeozoic
• B. Mesozoic
• C. Proterozoic
• D. Cenozoic

Hint:

{Mesozoic = Triassic + Jurassic + Cretaceous}.

Answer 1

The Correct Option is B

Step 1: Understanding geological time scale.
The Earth’s history is divided into eras based on major geological and biological events.

Step 2: Identifying the era.
The Triassic, Jurassic, and Cretaceous periods together constitute the Mesozoic era, also known as the age of reptiles.

Step 3: Conclusion.
Hence, these periods belong to the Mesozoic era.