Question

I. Choose the correct option:- a. Which of these not a type of rock? (i) Igneous (ii) Sedimentary (iii) Metamorphic (iv) Magma b. Nickel and iron are found in (i) Core (ii) mantle (iii) Outer crust (v) Inner crust c. Rock salt is an example of (i) Igneous rock (ii) Metamorphic rock (iii) Sedimentary rock d. The crust comprises two distinct layers of sial and (i) Sima (ii) Mantle (iii)

II. How are igneous rocks formed?

III. What is sial and sima?

IV. List some uses of rocks.

V. How are metamorphic rocks formed?

VI. What is rock cycle. Explain it with the help of a labeled diagram.

VII. Describe the formation of sedimentary rocks. How do they tell us a lot about the history of the Earth.

Answer 1

magma

inner crust

igneous

sima

by pushing the plates togethar

Answer 2

Answer

A,4 B,5 C,3 D,1