CBSE Class 7 Geography Inside Our Earth Worksheet Set B

CBSE Class 7 Geography - Inside Our Earth

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SA I [2012-2013]




Fill in the blanks:

1. The remains of the dead plants and animals trapped in the layer of rocks are called ____________________.

2. Any natural mass of mineral matter that makes up earth’s crust is called ______________.

3. ______________ is a fiery red molten magma coming out from the interior of the earth on its surface.

4. _______________ are naturally occurring substances which have certain physical properties and definite chemical competitions.

5. The innermost layer of the earth is called _______________________.

6. ________________ is a very thick layer beneath the crust extending upto 2900 kilometre in depth.

7. The uppermost layer of the earth’s crust is called _____________________.

8. The main mineral constituents of the continental mass are ________________ and alumina.

9. The mantle extends up to a depth of ________________km.

10. The radius of the earth is ________________ kilometer.

11. The earth’s crust is made up of various types of _________________.

12. __________________ means fire.

13. ___________________________ means settle down.

14. ___________________________ means change of form.

15. Rocks formed in on the crust are called _______________________________________.

16. The innermost layer is the core with a radius of about __________ kilometer.

17. The process of transformation of the rock from one to another is known as the _________________.

18. The crust is about _________ kilometer on the continental masses and only ____ kilometer on the ocean floors.

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