Geography Chapter on Erosion and Rocks

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What can be a result of water erosion in hilly areas?

Increase in agricultural potential

Stability of riverbanks

Formation of new forests

Floods causing destruction (correct)

Overgrazing helps in preserving topsoil.

False

What is deforestation?

The large-scale cutting down of trees for cultivation and development.

____ is the process of extraction of metals from their ores.

Metallurgy Signup and view all the answers

Match the following ores with their corresponding minerals:

Haematite = Iron Bauxite = Aluminium Pyrite = Copper Calamine = Zinc Signup and view all the answers

Which type of rock is formed from the cooling and solidification of lava?

Igneous rock Signup and view all the answers

Sedimentary rocks form in layers due to the deposition of sediments.

True Signup and view all the answers

How is petroleum formed?

Through the pressure and heat on dead plants and animals over time. Signup and view all the answers

The _______ of trees holds the soil together.

roots Signup and view all the answers

Which of the following is a key characteristic of metamorphic rocks?

Formed through heat and pressure Signup and view all the answers

Which of the following contributes to soil erosion in hilly areas?

All of the above Signup and view all the answers

The roots of trees can help to prevent soil erosion.

True Signup and view all the answers

What process leads to the formation of sedimentary rocks?

Deposition of sediments Signup and view all the answers

When cattle repeatedly graze a field, it can lead to the loss of __________.

topsoil Signup and view all the answers

Match the following minerals with their corresponding ores:

Haematite = Iron Bauxite = Aluminium Pyrite = Copper Calamine = Zinc Signup and view all the answers

Which type of rock is created through physical and chemical changes under heat and pressure?

Metamorphic Signup and view all the answers

Petroleum is formed from the remains of dead plants and animals under heat and pressure.

True Signup and view all the answers

A large open area used for extracting minerals is known as a __________.

quarry Signup and view all the answers

What is metallurgy?

The process of extraction of metals from their ores. Signup and view all the answers

What percentage of the Earth's crust is composed of igneous rocks?

95% Signup and view all the answers

What is the primary cause of soil erosion in hilly areas?

Water runoff Signup and view all the answers

Overgrazing can lead to soil erosion by leaving the topsoil unprotected.

True Signup and view all the answers

What is the definition of a quarry?

A large open area of holes made in Earth from which minerals are extracted. Signup and view all the answers

The process by which rocks undergo physical and chemical changes due to heat and pressure is called __________.

metamorphism Signup and view all the answers

Match the following minerals with their respective ores:

Haematite = Iron Bauxite = Aluminium Pyrite = Copper Calamine = Zinc Signup and view all the answers

Which rock type is formed through cooling and solidification of molten material?

Igneous Signup and view all the answers

Deforestation helps in maintaining soil stability.

False Signup and view all the answers

What is peat?

Dead remains of plants that have rotted away forming a thick lumpy brown substance. Signup and view all the answers

Petroleum is formed from the __________ of dead, rotting plants and animals.

pressure Signup and view all the answers

Which of the following statements is true regarding sedimentary rocks?

They are always formed in layers. Signup and view all the answers

What is the term for the dead remains of plants that form a thick substance before turning into coal?

Peat Signup and view all the answers

Overgrazing contributes to the preservation of topsoil.

False Signup and view all the answers

What type of rocks are formed as a result of heat and pressure altering existing rocks?

Metamorphic rocks Signup and view all the answers

The deposition of mineral-rich soil in riverbeds can change the course of the ______.

river Signup and view all the answers

Match the following ores with their minerals:

Haematite = Iron Bauxite = Aluminium Pyrite = Copper Calamine = Zinc Signup and view all the answers

Which type of rock forms in layers from deposited sediments?

Sedimentary rocks Signup and view all the answers

Deforestation helps prevent water erosion.

False Signup and view all the answers

Metallurgy is the process of extraction of metals from their ______.

ores Signup and view all the answers

What primarily contributes to soil erosion in hilly areas?

All of the above Signup and view all the answers

Igneous rocks represent less than 50% of the Earth's crust.

False Signup and view all the answers

What is the primary effect of deforestation on soil?

Increased soil erosion Signup and view all the answers

____ is the mineral extracted from haematite.

Iron Signup and view all the answers

Match the following types of rocks with their definitions:

Igneous rocks = Formed from the cooling and solidification of molten material Sedimentary rocks = Formed in layers through sediment deposition Metamorphic rocks = Formed from existing rocks undergoing physical and chemical changes Lava = Molten rock that reaches the Earth's surface Signup and view all the answers

Which process helps in the formation of peat?

Decay of plant remains Signup and view all the answers

Metallurgy involves the extraction of metals from coal.

False Signup and view all the answers

What creates sedimentary rocks?

Deposited sediments Signup and view all the answers

Petroleum is formed from the remains of __________ under heat and pressure.

dead plants and animals Signup and view all the answers

What is the primary source of minerals like aluminium?

Bauxite Signup and view all the answers

Which of the following processes can lead to soil erosion in hilly areas?

Water erosion Signup and view all the answers

Deforestation increases the likelihood of soil erosion.

True Signup and view all the answers

Geography Chapter on Erosion and Rocks

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Questions and Answers

What can be a result of water erosion in hilly areas?

Overgrazing helps in preserving topsoil.

What is deforestation?

____ is the process of extraction of metals from their ores.

Match the following ores with their corresponding minerals:

Which type of rock is formed from the cooling and solidification of lava?

Sedimentary rocks form in layers due to the deposition of sediments.

How is petroleum formed?

The _______ of trees holds the soil together.

Which of the following is a key characteristic of metamorphic rocks?

Which of the following contributes to soil erosion in hilly areas?

The roots of trees can help to prevent soil erosion.

What process leads to the formation of sedimentary rocks?

When cattle repeatedly graze a field, it can lead to the loss of __________.

Match the following minerals with their corresponding ores:

Which type of rock is created through physical and chemical changes under heat and pressure?

Petroleum is formed from the remains of dead plants and animals under heat and pressure.

A large open area used for extracting minerals is known as a __________.

What is metallurgy?

What percentage of the Earth's crust is composed of igneous rocks?

What is the primary cause of soil erosion in hilly areas?

Overgrazing can lead to soil erosion by leaving the topsoil unprotected.

What is the definition of a quarry?

The process by which rocks undergo physical and chemical changes due to heat and pressure is called __________.

Match the following minerals with their respective ores:

Which rock type is formed through cooling and solidification of molten material?

Deforestation helps in maintaining soil stability.

What is peat?

Petroleum is formed from the __________ of dead, rotting plants and animals.

Which of the following statements is true regarding sedimentary rocks?

What is the term for the dead remains of plants that form a thick substance before turning into coal?

Overgrazing contributes to the preservation of topsoil.

What type of rocks are formed as a result of heat and pressure altering existing rocks?

The deposition of mineral-rich soil in riverbeds can change the course of the ______.

Match the following ores with their minerals:

Which type of rock forms in layers from deposited sediments?

Deforestation helps prevent water erosion.

Metallurgy is the process of extraction of metals from their ______.

What primarily contributes to soil erosion in hilly areas?

Igneous rocks represent less than 50% of the Earth's crust.

What is the primary effect of deforestation on soil?

____ is the mineral extracted from haematite.

Match the following types of rocks with their definitions:

Which process helps in the formation of peat?

Metallurgy involves the extraction of metals from coal.

What creates sedimentary rocks?

Petroleum is formed from the remains of __________ under heat and pressure.

What is the primary source of minerals like aluminium?

Which of the following processes can lead to soil erosion in hilly areas?

Deforestation increases the likelihood of soil erosion.

What type of rocks are formed as a result of the cooling and solidification of magma?

________ are formed due to physical and chemical changes in existing rocks.

What is the main reason for overgrazing leading to soil erosion?

The formation of petroleum requires exposure to sunlight.

What process involves extracting metals from ores?

Natural solid material that contains minerals is known as an ______.

What mineral does bauxite yield?

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