PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free DemoAssertion and reason type questions:
1. Fossilization:
| Assertion: | When the dead remnants of Trilobita got buried in the segment it dissolves by the underground water leaving a cavity like depression called the mould. |
| Reason: | The fossils of Trilobita are examples of moulds. |
2. Determination of age of fossils
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| Assertion: | Absolute dating determines the specific age of a fossil by measuring the decay of isotopes. |
| Reason: | Carbon, uranium, lead or potassium are the various radioactive elements present in fossils. |
3. Exobiology
| Assertion: | The most important idea in astrobiology is the concept of a habitable zone. |
| Reason: | Earth is the only planet in the goldilocks zone in our solar system. |
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