Morning Star solutions for Total Geography [English] Class 9 ICSE chapter 6 - Rocks [Latest edition]

State two points of distinction between rocks and minerals.

Name any three elements of the earth’s crust.

Name three types of rocks.

Why are the igneous rocks also called the primary rocks?

Give one difference between Extrusive igneous and Intrusive igneous rocks.

Name any two chief characteristics of Igneous Rocks.

What is the main characteristics of Basic Igneous Rocks?

Name two important landforms made by Igneous Rocks.

What are Sills?

Which rocks are associated with ores of metals?

Which rocks are associated with fossil fuels?

Mention any two chief characteristics of Sedimentary Rocks.

Give two examples of Sedimentary Rocks.

Name the rocks which are most widespread on the earth.

Name the three stages of lithification of Sedimentary rocks.

Name the types Sedimentary rocks based on agents of formation.

Which agents are responsible for deposition of sediments?

What are known as metamorphic rocks?

Give two examples of metamorphic rocks

What is Mechanical Metamorphism?

What is meant by Rock Cycle?

What processes are involved in the formation of Igneous Rocks?

Explain this term associated with rocks: Extrusive Igneous Rocks

Explain this term associated with rocks: Laccoliths and Batholiths

Explain this term associated with rocks: Fossil fuels

Explain this term associated with rocks: Lithification of Rocks.

Explain this term associated with rocks: Metamorphism

Distinguish between the following: Lava and Magma

Distinguish between the following: Plutonic and Volcanic rocks.

Distinguish between the following: Thermal and Dynamic Metamorphism.

Distinguish between the following: Sills and Dykes.

Distinguish between the following: Calcarious and Carbonacious rocks.

Distinguish between the following: Acid Igneous Rocks and Basic Igneous Rocks.

State the types of rocks for the formation of which the following process is involved.

Solidification of magma on the surface of the earth.

State the types of rocks for the formation of which the following process is involved.

Formation of large crystals, coarse texture and slow cooling and compaction.

State the types of rocks for the formation of which the following process is involved.

Accumulation takes place over long periods of time in seas, lakes and streams.

State the types of rocks for the formation of which the following process is involved.

Decomposition of organic matter at different stages and over different periods of time.

Distinguish between rocks and minerals.

Describe how are igneous rocks formed? State their chief characteristics.

How are igneous rocks classified on the basis of their chemical composition?

Classify the igneous rocks on the basis of their place of origin.

How are sedimentary rocks formed?

Explain the formation of sedimentary rocks on the basis of agents of formation.

How are sedimentary rocks classified on the basis of their formation?

What is metamorphism?

What are the causes of metamorphism?

What are the chief characteristics of metamorphic rocks?

What is Rock Cycle. How does it keep the earth young?

Give a detailed account of lithiflcation of sedimentary rocks.

Name the main types of rocks.

What is meant by a rock?

Differentiate between Rock and Mineral

How are sedimentary and igneous rocks formed?

In what type of rocks do you find fossils and why?

How are rocks important to us?

Name different types of sedimentary rocks.

What physical agents are involved in the sedimentary rocks?

How are chemically-formed sedimentary rocks produced?

How are chemically-formed sedimentary rocks formed? Give examples.

Sedimentary rocks are also called stratified rocks. Why?

What is meant by the term ‘metamorphism’?

Distinguish between Thermal metamorphism and Dynamic metamorphism.

Distinguish between Regional and Contact metamorphism.

What are metamorphic rocks?

Give some examples of metamorphic rocks formed from sedimentary and igneous rocks.

Classify the following rock: Shale

Classify the following rock: Gneiss

Classify the following rock: Quartzite

Classify the following rock: Slate

Classify the following rock: Marble

Classify the following rock: Coal

Classify the following rock: Clay

Classify the following rock: Schist

Classify the following rock: Granite

Classify the following rock: Graphite

Classify the following rock: Dolomite

Classify the following rock: Peat

Classify the following rock: Basalt

Classify the following rock: Rock salt

Classify the following rock: Limestone

Classify the following rock: Gypsum

Classify the following rock: Loess

Give one word for the following.

The outer layer of the earth.

Give one word for the following.

The lower part of ocean floor, comprising mainly of silica.

Give one word for the following.

Rocks formed by the cooling and solidification of molten rock from beneath the earth crust.

Give one word for the following.

Stratified rock formed organically but from vegetative matter-swamps and forests.

Give one word for the following.

The upper part of lithosphere, which is rich in silica and aluminium.

Give one word for the following.

The core of the earth occupied by rock in iron and nickel.

Give one word for the following.

Igneous rocks, which contain a high percentage of silica.

Give one word for the following.

Igneous rocks, which contain a low percentage of silica.

Give one word for the following.

A sedimentary rock, which is composed of microscopically fine, soft and smooth particles.

Give one word for the following.

The best example of chemically-formed sedimentary rock, which has been formed by the evaporation of water from solution containing minerals.

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The interior layer is the core, which is made up mainly of iron and nickel, and is called ______.

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______ rocks are formed by the deposition of shells and skeletons of organism.

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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.

Why are the Igneous Rocks called Primary Rocks?

Why fossils are preserved in Sedimentary and not in Igneous rocks?

How is Plutonic rock formed?

Give an example of a Plutonic rock.

Give reasons for the following

Extrusive rocks generally have small crystals.

Give reasons for the following

Silicates are the most common rock forming minerals.

Give reasons for the following

Rocks are of great economic significance.

Give reasons for the following

Man’s habitat is the biosphere and not the lithosphere in the true sense.

Distinguish between Intrusive and Extrusive Rocks