Question

If the fossil of an organism is found in the deeper layers of earth, then we can predict that:
i. the extinction of organism has occurred recently
ii. the extinction of organism has occurred thousands of years ago
iii. the fossil position in the layers of earth is not related to its time of extinction
iv. time of extinction cannot be determined.

Gujarat Board Class X Science and Technology Chapter 16 - Heredity and Evolution

Answer 1

If the fossil of an organism is found in the deeper layers of earth, then we can predict that:

ii. the extinction of organism has occurred thousands of years ago 

Answer 2

If the fossil of an organism is found in the deeper layers of earth, then we can predict that the extinction of an organism has occurred thousands of years ago.  

Option ii

Explanation:  

• Fossils get embedded in the earth’s surface when natural calamities occur or sudden environmental changes take place.  
• The deeper the fossil, the older it is, as with time the layers of the earth’s surface get more and more and this leads to the deepening of the position of the fossil.  
• Therefore, when the organism’s fossil is found in the deeper layers of the earth’s surface it shows that the age of the fossil has done thousands of years ago as with time the surface has grown.

Learn more about Fossil:

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