ESS
Grade-7
Easy
Question
In which of the following types of rocks are fossils found?
- Marble
- Limestone
- Basalt
- Granite
The correct answer is: Limestone
During ancient times, when the remnants of animals or plants became hardened and fixed within a sedimentary rock or volcanic ash, it led to the formation of fossils. Limestones are sedimentary rocks. Granite and basalt are igneous rocks; marble is a metamorphic rock. Hence, they do not contain fossils.
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Match the following:
| A. Petrification | i. Relative dating |
| B. Index Fossil | ii. Igneous rock formation |
| C. Radioactive minerals | iii. Fossil formation |
| D. Crystallization of magma | iv. Absolute dating |
Match the following:
| A. Petrification | i. Relative dating |
| B. Index Fossil | ii. Igneous rock formation |
| C. Radioactive minerals | iii. Fossil formation |
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Which of the following statements is incorrect?
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_____________ are commonly known as “our window to the past.”
_____________ are commonly known as “our window to the past.”
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Match the following:
| A. Granite | i. Sedimentary rock |
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The current geological epoch of Earth is known as ___________.
The current geological epoch of Earth is known as ___________.
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The remains or traces of ancient life that have been preserved by natural processes are known as _____________.
The remains or traces of ancient life that have been preserved by natural processes are known as _____________.
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Most of the fossils are found in ____________ rock.
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“Paleontology” is associated with the study of __________.
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Which is the longest subdivision of the geological time scale?
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