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A: Mesozoic is the era of dinosaurs, but they suddenly disappeared from the earth.
R: Dinosaurs may have changed into birds, or climatic changes killed them.
  • a)
    If both Assertion & Reason are true, and the reason is the correct explanation of the assertion.
  • b)
    If both Assertion & Reason are true, but the reason is not the correct explanation of the assertion, then mark
  • c)
    If the Assertion is a true statement, but Reason is false.
  • d)
    If both Assertion and Reason are false statements.
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
A: Mesozoic is the era of dinosaurs, but they suddenly disappeared fro...
Dinosaur’s extinction → possibly due to climatic change.
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A: Mesozoic is the era of dinosaurs, but they suddenly disappeared fro...
Understanding the Assertion and Reason
The assertion and reason statement revolves around the Mesozoic era and the extinction of dinosaurs. Let's break down the components:
Assertion: Dinosaurs in the Mesozoic Era
- The Mesozoic era (approximately 252 to 66 million years ago) is known as the age of dinosaurs.
- Dinosaurs thrived during this period but suddenly disappeared at the end of the Cretaceous period.
Reason: Theories of Dinosaur Extinction
- There are various theories regarding the extinction of dinosaurs.
- One prominent theory suggests that some dinosaurs evolved into birds.
- Another theory indicates that climatic changes, possibly due to an asteroid impact, led to their extinction.
Why Option A is Correct
- Both the assertion and reason are true statements:
- Dinosaurs indeed ruled during the Mesozoic era.
- The theories regarding their extinction are scientifically supported.
- The reason provided (evolution into birds and climatic changes) serves as a valid explanation for the assertion:
- The transition from dinosaurs to birds is a significant evolutionary milestone.
- Climatic changes, particularly the asteroid impact hypothesis, directly correlate to the sudden disappearance of dinosaurs.
Conclusion
In summary, since both the assertion and reason are true, and the reason effectively explains the assertion, the correct answer is option 'A'. This understanding is crucial for grasping the evolutionary history and extinction events of dinosaurs, key topics in NEET biology.
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A: Mesozoic is the era of dinosaurs, but they suddenly disappeared from the earth.R: Dinosaurs may have changed into birds, or climatic changes killed them.a)If both Assertion & Reason are true, and the reason is the correct explanation of the assertion.b)If both Assertion & Reason are true, but the reason is not the correct explanation of the assertion, then markc)If the Assertion is a true statement, but Reason is false.d)If both Assertion and Reason are false statements.Correct answer is option 'A'. Can you explain this answer?
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A: Mesozoic is the era of dinosaurs, but they suddenly disappeared from the earth.R: Dinosaurs may have changed into birds, or climatic changes killed them.a)If both Assertion & Reason are true, and the reason is the correct explanation of the assertion.b)If both Assertion & Reason are true, but the reason is not the correct explanation of the assertion, then markc)If the Assertion is a true statement, but Reason is false.d)If both Assertion and Reason are false statements.Correct answer is option 'A'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A: Mesozoic is the era of dinosaurs, but they suddenly disappeared from the earth.R: Dinosaurs may have changed into birds, or climatic changes killed them.a)If both Assertion & Reason are true, and the reason is the correct explanation of the assertion.b)If both Assertion & Reason are true, but the reason is not the correct explanation of the assertion, then markc)If the Assertion is a true statement, but Reason is false.d)If both Assertion and Reason are false statements.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A: Mesozoic is the era of dinosaurs, but they suddenly disappeared from the earth.R: Dinosaurs may have changed into birds, or climatic changes killed them.a)If both Assertion & Reason are true, and the reason is the correct explanation of the assertion.b)If both Assertion & Reason are true, but the reason is not the correct explanation of the assertion, then markc)If the Assertion is a true statement, but Reason is false.d)If both Assertion and Reason are false statements.Correct answer is option 'A'. Can you explain this answer?.
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