Question

The Mesozoic Era approximately ranges from

• A. 1000-540 Ma
• B. 250-65 Ma
• C. 540-250 Ma
• D. 65 Ma-Present

Hint:

The Mesozoic Era spans from 250 to 65 million years ago, and it is characterized by the dominance of dinosaurs.

Answer 1

The Correct Option is B

Step 1: Understanding the Mesozoic Era.
The Mesozoic Era is a well-known geologic period that lasted from approximately 250 million years ago (Ma) to 65 million years ago. It is known as the "Age of Dinosaurs."

Step 2: Analyzing the options.
(A) 1000-540 Ma: This is incorrect, as this time range falls before the Mesozoic Era.
(B) 250-65 Ma: Correct — This is the actual range of the Mesozoic Era.
(C) 540-250 Ma: This refers to the preceding Paleozoic Era.
(D) 65 Ma-Present: This range refers to the Cenozoic Era, which started after the Mesozoic Era.

Step 3: Conclusion.
The correct answer is (B) 250-65 Ma, as this is the time span of the Mesozoic Era.