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What do you understand by Earth's mantle?
Important Questions on The Earth
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The earth has four layers.
Name the layers in this diagram of the earth.


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Crossword puzzle:
Down
1. Outermost layer of the earth.
4. A term for diamond, graphite, etc.
6. Topmost layer of the earth's surface.
Across
2. Innermost part of the earth.
3. A type of soil which is a mixture of sand and clay.
5. An example of rocks found under water.
7. Decaying plant and animal matter.

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