What is Internal Process?

1

(a)

The process operating inside the Earth is known as internal process.
Example: The movement of magma, producing volcanoes and earthquakes.

Define External Process.

1

(a)

The process chiefly operating on the surface of the Earth is called external process
Example: Erosion and weathering.

Name the process which modifies the surfaces of the Earth

1

(a)

(i) Internal process and (ii) External process

What is Erosion?

1

(a)

The wearing away of the Earth's surface is called Erosion.

What do you mean by Deposition?

1

(a)

The process of depositing the transported sediments is called deposition

What is a mountain ?

1

(a)

A mountain is any natural elevation of the Earth surface, often 600 metres and more above the ground.

What is a mountain range?

1

(a)

Mountains may be arranged in a line known as mountain range.

What are Horsts?

1

(a)

The raised part of the Earth's surface between two faults or BlockMountains is known as horst

What is Glacier?

1

(a)

Moving mass of ice is called Glacier

Define the term 'landforms'.

1

(a)

The physical features of the Earth's surface are known landforms.

Why is the plateau of Tibet special?

1

(a)

The Tibet Plateau is the highest plateau in the world with a height of 4,000 to 6,000 metres above the mean sea level.

What do you mean by Graben?

1

(a)

The lowered block between two normal faults is known as Graben.

Name the most populated region of India

1

(a)

The Indo-Gangetic plain is the most populated region of India.

What do you understand by flora and fauna?

1

(a)

Flora means plants and fauna means animals.

Define Divergent boundary

1

(a)

Divergent boundary: Boundary where plates move apart or spread

Define Convergent boundary

1

(a)

Convergent boundary: Boundary where plates collide with each other, causing one plate to either dive under or ride up over the other plate.

Define Transform boundary

1

(a)

Transform boundary: Boundary where plates slide past each other.

Define Folds

1

(a)

Folds: Places where rocks have been compressed into bends by colliding plates

Define Faults

1

(a)

Faults: Places where rock masses have been broken.

Define Earthquake

1

(a)

Earthquake: Sudden shakings of the Earth's crust that take place when tectonic forces cause masses of rock inside the crust to break.

How are volcanic mountains formed? Give examples.

3

(a)

Define a Range.Give examples.

3

(a)

How is a hill different from a mountain?

3

(a)

Give some examples of Fold Mountains

3

(a)

What is a Plateau? Name some of the plateaus of the world

3

(a)

Giving examples, explain how land as a resource is being wasted by man

3

(a)

Name some of the recreational activities common in the coastal areas.

3

(a)

Name some of the depositional features

3

(a)

Name three natural resources for which plateaus are well-known

3

(a)

Why do Himalayan rivers have abundant water?

3

(a)

What is the difference between weathering and erosion?

3

(a)

What kind of settlement pattern is seen on mountains?

3

(a)

The plains are known as food baskets.Why?

3

(a)

Why are plateaus called 'storehouse of 'minerals'?

3

(a)

How do mountains modify the climate of a place?

3

(a)