(English Medium) ICSE Class 9 - CISCE Question Bank Solutions

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______ is formed, when the angular and coarse grains of some durable minerals are cemented together.

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______ is the best example of the wind deposited stratified rock.

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______ rock contain a low percentage of silica and a high percentage of basic oxides.

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Extrusive rocks are also known as ______ rocks.

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______ rocks cover wide area in Peninsular India and Columbia, the Snake Plateau of the U.S.A.

Give one example of an area of: Igneous rocks

Give one example of an area of: Metamorphic rocks,

Give one example of an area of: Sedimentary rocks in India

What is the basis for the classification of rocks?

Why are Sedimentary rocks called the Secondary rocks?

How are sedimentary rocks classified?

State the properties of metamorphic rocks.

Give one term for the following statement:

Formed when mud layers compacted under great pressure composing 80% of this rock.

Give one term for the following statement:

It has a definite chemical composition with its own chemical and physical properties.

Give one term for the following statement:

Igneous rocks of deep seated origin.

Give one term for the following statement:

Sheet like body of igneous rock.

Give one term for the following statement:

Rounded or sub-rounded fragments, usually water-born cobbles, pebble and gravel, cemented together by a matrix of calcium carbonate, silica, etc.

Give one term for the following statement:

Formed by evaporation in saline lakes.

Give one term for the following statement:

Fine grained metamorphic rock, generally produced by the low grade metamorphism of shale.

Give one term for the following statement:

Type of metamorphism in which changes are caused due to high pressure.