Which hill range is the 'Dodabeta' peak situated on?

Correct Option: A. Solution: Dodabeta peak is situated on the Nilgiri hills.

Which mountain range is the 'Dodabeta' peak situated on?

Correct Option: A. Solution: The 'Dodabeta' peak is situated on the Nilgiri hills.

Structure and Physiography

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Summary

Summary of Structure and Physiography

Key Points

Earth's History: Approximately 4600 million years old; shaped by endogenic and exogenic forces.
Plate Tectonics: Indian plate's northward movement affects the physical environment.
Geological Divisions of India:
- Peninsular Block: Composed of ancient gneisses and granites; includes various mountain ranges and plateaus.
- Himalayas and Peninsular Mountains: Young and tectonically active; characterized by faults and fast-flowing rivers.
- Indo-Ganga-Brahmaputra Plain: Formed by sediment deposition; fertile alluvial soil supports agriculture.

Physiographic Divisions

Northern and North-eastern Mountains
Northern Plain
Peninsular Plateau: Divided into three groups:
- Deccan Plateau
- Central Highlands
- Northeastern Plateau
Desert Region: Great Indian Desert with low rainfall and unique topography.
Coastal Plains: Divided into western (submerged) and eastern (emergent) coastal plains, with significant delta formations on the eastern side.

Learning Objectives

Understand the geological history of the Earth and its impact on landforms.
Identify the three major geological divisions of India: the Peninsular Block, the Himalayas, and the Indo-Ganga-Brahmaputra Plain.
Describe the characteristics of the Peninsular Block, including its ancient geological formations and major landforms.
Explain the geological structure and features of the Himalayas and other Peninsular mountains.
Analyze the formation and significance of the Indo-Ganga-Brahmaputra Plain.
Discuss the physiographic divisions of India, including the Northern and North-eastern Mountains, the Northern Plain, the Peninsular Plateau, the Indian Desert, the Coastal Plains, and the Islands.
Evaluate the impact of endogenic and exogenic forces on the physical environment of India.
Compare the characteristics of the western and eastern coastal plains of India.

Detailed Notes

Structure and Physiography

Overview

The earth is approximately 4600 million years old and has undergone changes due to endogenic and exogenic forces.
The Indian plate was once larger and located south of the equator.
The northward movement of the Indian plate continues to impact the physical environment of the Indian subcontinent.

Geological Divisions of India

India can be divided into three geological divisions based on geological structure:

The Peninsular Block
The Himalayas and other Peninsular Mountains
Indo-Ganga-Brahmaputra Plain

The Peninsular Block

Formed by ancient gneisses and granites.
Stands as a rigid block with some areas affected by tectonic activity.
Includes features like:
- Rift valleys: Narmada, Tapi, Mahanadi.
- Mountains: Aravali, Nallamala, Javadi, Veliconda, Palkonda, Mahendragiri.

The Himalayas and Other Peninsular Mountains

Young and flexible geological structure.
Subject to ongoing geological processes, resulting in:
- Landforms: Gorges, V-shaped valleys, rapids, waterfalls.

Indo-Ganga-Brahmaputra Plain

Formed by the rivers Indus, Ganga, and Brahmaputra.
Originally a geo-synclinal depression filled with sediments.
Average depth of alluvial deposits: 1,000-2,000 m.
Supports a variety of crops due to fertile alluvial soil.

Physiography of India

Characterized by diverse physical features:
- Northern and North-eastern Mountains
- Northern Plain
- Peninsular Plateau

The Peninsular Plateau

Irregular triangle with an elevation of 150 m to 900 m.
Comprises:
1. The Deccan Plateau
2. The Central Highlands
3. The Northeastern Plateau

The Deccan Plateau

Bordered by Western and Eastern Ghats.
Contains major rivers originating from the Western Ghats.

The Central Highlands

Bounded by the Aravali range and characterized by relict mountains.

The Northeastern Plateau

Extension of the main Peninsular plateau with rich mineral resources.

The Indian Desert

Located northwest of the Aravali hills, characterized by low rainfall and arid climate.
Known for features like longitudinal dunes and barchans.

Coastal Plains

Divided into:
1. Western Coastal Plains: Submerged coastal plain with natural ports.
2. Eastern Coastal Plains: Emergent coast with well-developed deltas.

Islands

Andaman and Nicobar Islands: Elevated portions of submarine mountains.
Lakshadweep Islands: Built of coral deposits, scattered off the Kerala coast.

Conclusion

India's geological structure significantly influences its physiography and relief, resulting in diverse landforms and ecosystems.

Exam Tips & Common Mistakes

Common Mistakes and Exam Tips

Common Pitfalls

Misunderstanding Geographical Terms: Students often confuse terms like 'delta' and 'plain'. Ensure you understand the definitions and characteristics of each.
Ignoring the Importance of Scale: When interpreting maps, students may overlook the scale, leading to incorrect conclusions about distances and sizes.
Overlooking Key Features: In questions about physical geography, students sometimes fail to mention significant features such as major rivers, mountains, or plains that are crucial for full marks.

Tips for Exam Preparation

Review Key Concepts: Regularly revisit the definitions and characteristics of major geographical features, such as the Peninsular Block and the Indo-Ganga-Brahmaputra Plain.
Practice Map Work: Familiarize yourself with maps of India, focusing on the locations of important landforms and water bodies.
Answer Structure: When answering descriptive questions, structure your responses clearly, using subheadings if necessary to organize your thoughts.
Time Management: Allocate time wisely during exams to ensure you can answer all questions, especially those requiring detailed explanations.

Practice & Assessment

Multiple Choice Questions

High elevation

Submerged coastal plain

Lack of rivers

Dense vegetation

Correct Answer: B

Solution:

The western coastal plains are submerged, which prevents the formation of deltas.

Ganga

Narmada

Yamuna

Brahmaputra

Correct Answer: B

Solution:

The Narmada River flows through a rift valley, which is a characteristic feature of the Peninsular Block.

The Northern Plains

The Peninsular Plateau

The Coastal Plains

The Islands

Correct Answer: B

Solution:

The Peninsular Plateau is characterized by relict and residual mountains like the Aravali hills, which are ancient and have been subjected to extensive erosion.

11° Channel

Gulf of Mannar

10° Channel

Andaman Sea

Correct Answer: C

Solution:

The Andaman Islands are separated from the Nicobar Islands by the 10° Channel.

Block faulting

Volcanic activity

River erosion

Glacial movement

Correct Answer: A

Solution:

The rift valleys of the Narmada, Tapi, and Mahanadi are formed due to block faulting, a process associated with tectonic activity in the Peninsular Block.

Formation of the Himalayan mountain range

Creation of the Great Indian Desert

Emergence of the Western Ghats

Submergence of the city of Dwaraka

Correct Answer: A

Solution:

The northward movement of the Indian plate led to the collision with the Eurasian plate, resulting in the upliftment of the Himalayan mountain range.

High elevation

Low rainfall

Proximity to the sea

Dense vegetation

Correct Answer: B

Solution:

The Indian Desert has an arid climate due to low rainfall, receiving below 150 mm per year.

4600 million years

3600 million years

5600 million years

2600 million years

Correct Answer: A

Solution:

The Earth is approximately 4600 million years old as per current estimations.

The Northern Plains

The Peninsular Plateau

The Coastal Plains

The Indian Desert

Correct Answer: D

Solution:

The Great Indian Desert is a distinct physiographic division known as the Indian Desert.

The Northern Plains

The Sahara Desert

The Amazon Basin

The Rocky Mountains

Correct Answer: A

Solution:

The Northern Plains are one of the major physiographic divisions of India, formed by the alluvial deposits of the Indus, Ganga, and Brahmaputra rivers.

The Peninsular Block

The Himalayas

Indo-Ganga-Brahmaputra Plain

The Coastal Plains

Correct Answer: A

Solution:

The Peninsular Block consists of relict and residual mountains like the Aravali hills and the Nallamala hills.

River water

Rainwater

Brackish water from lakes and playas

Groundwater

Correct Answer: C

Solution:

The main source of obtaining salt in the Indian desert is the brackish water from lakes and playas.

Ganga

Narmada

Yamuna

Brahmaputra

Correct Answer: B

Solution:

The Narmada River forms a rift valley in the Peninsular Block, which is a characteristic feature of this region.

The Deccan Traps

The Indo-Ganga-Brahmaputra Plain

The Western Ghats

The Eastern Ghats

Correct Answer: B

Solution:

The Indo-Ganga-Brahmaputra Plain is primarily formed by the sediment deposition from the Himalayan and Peninsular rivers, which is a result of both endogenic (tectonic uplift) and exogenic (erosion and sedimentation) forces.

Volcanic activity

Tectonic uplift

Alluvial deposition

Glacial erosion

Correct Answer: C

Solution:

The Indo-Ganga-Brahmaputra Plain was formed by the alluvial deposits brought by the rivers Indus, Ganga, and Brahmaputra.

Himalayas

Aravali Range

Western Ghats

Eastern Ghats

Correct Answer: B

Solution:

The northern boundary of the Peninsular Block is marked by the Aravali Range.

Tectonic upliftment

Volcanic activity

Sediment deposition by rivers

Wind erosion

Correct Answer: C

Solution:

The Indo-Ganga-Brahmaputra Plain was formed by the deposition of sediments brought by the rivers Indus, Ganga, and Brahmaputra. These alluvial deposits created the vast plains.

Presence of black soil

High mountain ranges

Fertile alluvial soil

Desert landscape

Correct Answer: C

Solution:

The Northern Plains are characterized by fertile alluvial soil, which supports a variety of crops.

Nilgiri hills

Anaimalai hills

Cardamom hills

Nallamala hills

Correct Answer: B

Solution:

Anaimudi, the highest peak of the Peninsular plateau, is located on the Anaimalai hills.

Nilgiri hills

Anaimalai hills

Cardamom hills

Nallamala hills

Correct Answer: A

Solution:

Dodabeta peak is situated on the Nilgiri hills.

Himalayas

Aravali Range

Western Ghats

Eastern Ghats

Correct Answer: B

Solution:

The Aravali Range forms the northern boundary of the Peninsular Block.

1,500 km

2,500 km

3,500 km

4,500 km

Correct Answer: B

Solution:

The approximate length of the Great Himalayan range is 2,500 km from east to west.

Volcanic activity

Tectonic uplift

Alluvial deposits

Glacial erosion

Correct Answer: C

Solution:

The Indo-Ganga-Brahmaputra Plain was formed by alluvial deposits brought by the rivers Indus, Ganga, and Brahmaputra.

The Peninsular Block

The Himalayas

Indo-Ganga-Brahmaputra Plain

The Indian Desert

Correct Answer: A

Solution:

The Peninsular Block is formed essentially by a great complex of very ancient gneisses and granites.

The Northern Plains

The Peninsular Plateau

The Indian Desert

The Coastal Plains

Correct Answer: A

Solution:

The Northern Plains are known for their fertile alluvial soil, supporting a variety of crops.

Aravali Range

Nilgiri Hills

Anaimalai Hills

Satpura Range

Correct Answer: C

Solution:

Anaimalai Hills are known for having 'Anaimudi', the highest peak in the Peninsular Plateau.

Ganga

Luni

Yamuna

Brahmaputra

Correct Answer: B

Solution:

The Luni river is significant in the southern part of the Indian desert.

Formation of the Himalayas

Frequent earthquakes in the Himalayan region

Formation of coral reefs in the Andaman Sea

Continued upliftment of the Tibetan Plateau

Correct Answer: C

Solution:

The formation of coral reefs in the Andaman Sea is not related to the northward movement of the Indian plate. This movement primarily affects the Himalayan region, leading to the formation of the Himalayas, earthquakes, and upliftment of the Tibetan Plateau.

Young fold mountains

Ancient gneisses and granites

Volcanic islands

Alluvial plains

Correct Answer: B

Solution:

The Peninsular Block is primarily formed of ancient gneisses and granites.

Sedimentary rocks

Volcanic rocks

Ancient gneisses and granites

Limestone and shale

Correct Answer: C

Solution:

The Peninsular Plateau is primarily composed of ancient gneisses and granites, making it one of the oldest and most stable landmasses in India.

High tidal activity

Submergence of the coast

High sedimentation rates

Presence of coral reefs

Correct Answer: B

Solution:

The western coastal plains are narrow and have been submerged, which prevents the formation of extensive deltas. This submergence provides natural conditions for the development of ports and harbours instead.

Aravali Hills

Himalayas

Western Ghats

Vindhyan Range

Correct Answer: B

Solution:

The Himalayas are young mountains that are still geologically active, experiencing exogenic and endogenic forces, leading to the formation of faults, folds, and thrust plains.

Sedimentary rocks

Metamorphic rocks

Igneous rocks

Limestone

Correct Answer: B

Solution:

The Peninsular Plateau is primarily composed of metamorphic rocks such as gneiss and granite.

Presence of relict and residual mountains

Formation of young fold mountains

Presence of active volcanoes

Formation of large deltas

Correct Answer: A

Solution:

The Peninsular Plateau is characterized by relict and residual mountains like the Aravali hills.

Narmada

Tapi

Mahanadi

Luni

Correct Answer: C

Solution:

The Mahanadi river forms a delta before entering the Bay of Bengal.

Lakshadweep

Andaman and Nicobar Islands

Minicoy

Ritchie's Archipelago

Correct Answer: B

Solution:

The Andaman and Nicobar Islands are known for having Barren Island, the only active volcano in India.

Ladakh

Rajasthan

Kerala

Sundarbans

Correct Answer: A

Solution:

Ladakh is known for having a cold desert climate, characterized by low precipitation and high altitude.

The Northern Plains

The Peninsular Plateau

The Coastal Plains

The Indian Desert

Correct Answer: B

Solution:

The Shillong and Karbi-Anglong plateau are part of the Peninsular Plateau.

Volcanic activity

Alluvial deposition

Tectonic uplift

Glacial erosion

Correct Answer: B

Solution:

The Indo-Ganga-Brahmaputra Plain is formed by the alluvial deposits brought by the rivers Indus, Ganga, and Brahmaputra.

Ancient gneisses and granites

Young fold mountains

Volcanic plateaus

Coral islands

Correct Answer: A

Solution:

The Peninsular Block is primarily composed of ancient gneisses and granites, making it a stable geological region.

Ganga

Narmada

Yamuna

Brahmaputra

Correct Answer: B

Solution:

The Narmada River is known for forming a rift valley in the Peninsular Plateau.

The Northern Plains

The Peninsular Plateau

The North and Northeastern Mountains

The Coastal Plains

Correct Answer: C

Solution:

The North and Northeastern Mountains, which include the Himalayas, are characterized by rugged topography with a series of mountain ranges, peaks, valleys, and gorges.

Nilgiri hills

Anaimalai hills

Cardamom hills

Nallamala hills

Correct Answer: A

Solution:

The 'Dodabeta' peak is situated on the Nilgiri hills.

The Peninsular Block

The Himalayas

Indo-Ganga-Brahmaputra Plain

The Coastal Plains

Correct Answer: A

Solution:

The Peninsular Block is characterized by its ancient gneisses and granites, making it a stable landmass.

11° Channel

Gulf of Mannar

10° Channel

Andaman Sea

Correct Answer: C

Solution:

The Andaman Islands are separated from the Nicobar Islands by the 10° Channel.

Narmada

Tapi

Godavari

Luni

Correct Answer: C

Solution:

The Godavari river is known for forming a significant delta before entering the Bay of Bengal. The Narmada and Tapi do not form deltas as they flow westward into the Arabian Sea, and the Luni is an ephemeral river in the Thar Desert.

Rift valleys of the Narmada and Tapi

Deltas of the Ganga and Brahmaputra

Coral islands of Lakshadweep

Sand dunes of the Thar Desert

Correct Answer: A

Solution:

The rift valleys of the Narmada and Tapi are formed due to the vertical movements and block faulting, which are endogenic forces acting on the Peninsular Block.

Mahanadi

Godavari

Krishna

Narmada

Correct Answer: D

Solution:

The Narmada River does not form a delta; instead, it flows through a rift valley and drains into the Arabian Sea.

Rift valleys

Volcanic mountains

Block mountains

Tors

Correct Answer: B

Solution:

The Peninsular Plateau is characterized by features such as rift valleys, block mountains, and tors. Volcanic mountains are not typically associated with this region.

Godavari

Krishna

Ganga

Kaveri

Correct Answer: C

Solution:

The Ganga river does not originate from the Western Ghats. It originates from the Himalayas. The Godavari, Krishna, and Kaveri rivers originate from the Western Ghats.

The Northern Plains

The Peninsular Plateau

The Himalayas

The Coastal Plains

Correct Answer: C

Solution:

The Himalayas consist of a series of parallel mountain ranges and act as a significant climatic, drainage, and cultural divide in the Indian subcontinent.

The Peninsular Block

The Himalayas

The Indo-Ganga-Brahmaputra Plain

The Coastal Plains

Correct Answer: C

Solution:

The Indo-Ganga-Brahmaputra Plain is one of the primary geological divisions of India.

Andaman and Nicobar Islands

Lakshadweep and Minicoy

Sri Lanka and India

Maldives and Lakshadweep

Correct Answer: A

Solution:

The Ten Degree Channel separates the Andaman Islands from the Nicobar Islands in the Bay of Bengal.

Aravali Range

Western Ghats

Himalayas

Eastern Ghats

Correct Answer: C

Solution:

The Himalayas act as a climatic, drainage, and cultural divide in India, influencing the climate and river systems and acting as a barrier to cultural exchanges.

11° Channel

10° Channel

Andaman Sea

Gulf of Mannar

Correct Answer: B

Solution:

The Andaman Islands are separated from the Nicobar Islands by the 10° Channel.

True or False

Correct Answer: False

Solution:

The Western Ghats are more continuous and have a higher elevation compared to the Eastern Ghats.

Correct Answer: True

Solution:

The Western Ghats are generally higher in elevation than the Eastern Ghats, with peaks such as Anaimudi reaching 2,695 meters.

Correct Answer: True

Solution:

The Peninsular Plateau is formed essentially by a great complex of very ancient gneisses and granites.

Correct Answer: True

Solution:

The Western Ghats are comparatively higher in elevation and more continuous than the Eastern Ghats.

Correct Answer: True

Solution:

The Northern Plains are indeed formed by the alluvial deposits brought by the rivers Indus, Ganga, and Brahmaputra.

Correct Answer: True

Solution:

The Andaman and Nicobar Islands are separated by a waterbody called the Ten degree channel.

Correct Answer: True

Solution:

Current estimation shows that the earth is approximately 4600 million years old.

Correct Answer: True

Solution:

The Peninsular Block has remained a rigid structure since the Cambrian period, with only some parts affected by tectonic activity.

Correct Answer: True

Solution:

The Ten degree channel separates the Andaman Islands in the north from the Nicobar Islands in the south.

Correct Answer: True

Solution:

The Peninsular Block is formed essentially by a great complex of very ancient gneisses and granites.

Correct Answer: False

Solution:

The Indian plate was originally located to the south of the equator, not the north.

Correct Answer: True

Solution:

The Indian plate's northward movement is ongoing and has significant consequences on the physical environment of the Indian subcontinent.

Correct Answer: True

Solution:

The Peninsular Block is indeed formed by a great complex of very ancient gneisses and granites, which constitutes a major part of it.

Correct Answer: False

Solution:

The western coastal plains are an example of a submerged coastal plain, not an emergent coast.

Correct Answer: False

Solution:

The eastern coastal plains are broader and are an example of an emergent coast, unlike the narrower western coastal plains.

Correct Answer: False

Solution:

The Indian plate was originally located to the south of the equator millions of years ago.

Correct Answer: True

Solution:

The Meghalaya plateau is rich in mineral resources like coal, iron ore, sillimanite, limestone, and uranium.

Correct Answer: False

Solution:

The Peninsular Plateau is characterized by features like tors, block mountains, and rift valleys, not fertile alluvial soil, which is typical of the Northern Plains.

Correct Answer: False

Solution:

The Western Ghats are more continuous and have a higher elevation compared to the Eastern Ghats.

Correct Answer: False

Solution:

Most of the rivers in the Indian Desert region are ephemeral, meaning they do not flow year-round.

Correct Answer: True

Solution:

The Andaman and Nicobar Islands are separated by a waterbody called the Ten degree channel.

Correct Answer: True

Solution:

The Meghalaya plateau is rich in mineral resources like coal, iron ore, sillimanite, limestone, and uranium.

Correct Answer: True

Solution:

Western Ghats are comparatively higher in elevation and more continuous than the Eastern Ghats.

Correct Answer: True

Solution:

The Western Ghats are comparatively higher in elevation and more continuous than the Eastern Ghats.

Correct Answer: True

Solution:

The Indo-Ganga-Brahmaputra Plain was originally a geo-synclinal depression which attained its maximum development during the third phase of the Himalayan mountain formation.

Correct Answer: True

Solution:

The Western Ghats are comparatively higher in elevation and more continuous than the Eastern Ghats.

Correct Answer: True

Solution:

The Northern Plains are formed by the alluvial deposits brought by the rivers Indus, Ganga, and Brahmaputra.

Correct Answer: True

Solution:

The Ten degree channel is the waterbody that separates the Andaman Islands from the Nicobar Islands.

Correct Answer: True

Solution:

Current estimation shows that the earth is approximately 4600 million years old.

Correct Answer: True

Solution:

Western Ghats are locally known by different names such as Sahyadri in Maharashtra.

Correct Answer: True

Solution:

The Peninsular Plateau is one of the oldest and most stable landmasses of India.

Correct Answer: True

Solution:

The eastern coastal plains have well-developed deltas formed by the Mahanadi, Godavari, Krishna, and Kaveri rivers.

Correct Answer: True

Solution:

The Indo-Ganga-Brahmaputra Plain is a featureless plain with a general elevation of 50-150 m above mean sea level.

Correct Answer: True

Solution:

The Peninsular India is made up of a series of patland plateaus such as the Hazaribagh plateau, the Palamu plateau, the Ranchi plateau, etc.

Correct Answer: True

Solution:

The Peninsular India is made up of a series of plateaus and is one of the oldest and most stable landmasses of India.

Correct Answer: True

Solution:

The Indo-Ganga-Brahmaputra Plain was originally a geo-synclinal depression.

Correct Answer: True

Solution:

The Meghalaya plateau is indeed rich in mineral resources such as coal, iron ore, sillimanite, limestone, and uranium.

Correct Answer: False

Solution:

The Great Indian Desert receives low rainfall below 150 mm per year and has an arid climate with low vegetation cover.

Correct Answer: False

Solution:

Barren Island, the only active volcano in India, is situated in the Nicobar islands.

Structure and Physiography

AI Learning Assistant

Summary

Summary of Structure and Physiography

Key Points

Physiographic Divisions

Learning Objectives

Detailed Notes

Structure and Physiography

Overview

Geological Divisions of India

The Peninsular Block

The Himalayas and Other Peninsular Mountains

Indo-Ganga-Brahmaputra Plain

Physiography of India

The Peninsular Plateau

The Deccan Plateau

The Central Highlands

The Northeastern Plateau

The Indian Desert

Coastal Plains

Islands

Conclusion

Exam Tips & Common Mistakes

Common Mistakes and Exam Tips

Common Pitfalls

Tips for Exam Preparation

Practice & Assessment

Multiple Choice Questions

Q1.What is the primary reason for the absence of deltas on the western coastal plains of India?

Correct Answer: B

Q2.Which of the following rivers forms a rift valley?

Correct Answer: B

Q3.Which physiographic division of India is characterized by the presence of relict and residual mountains such as the Aravali hills?

Correct Answer: B

Q4.Which geological feature separates the Andaman Islands from the Nicobar Islands?

Correct Answer: C

Q5.Which geological feature is primarily responsible for the formation of the rift valleys of the Narmada, Tapi, and Mahanadi in the Peninsular Block of India?

Correct Answer: A

Q6.The Indian plate has been moving northward for millions of years. Which of the following is a significant geological consequence of this movement?

Correct Answer: A

Q7.What is the primary cause of the Indian Desert's arid climate?

Correct Answer: B

Q8.What is the approximate age of the Earth according to current estimation?

Correct Answer: A

Q9.Which physiographic division of India is characterized by the presence of the Great Indian Desert?

Correct Answer: D

Q10.Which of the following is a major physiographic division of India?

Correct Answer: A

Q11.Which geological division of India is characterized by the presence of the Aravali hills and the Nallamala hills?

Correct Answer: A

Q12.What is the main source of obtaining salt in the Indian desert?

Correct Answer: C

Q13.Which river forms a rift valley in the Peninsular Block?

Correct Answer: B

Q14.Which of the following geological features is primarily formed due to the interplay of endogenic and exogenic forces in the Indian subcontinent?

Correct Answer: B

Q15.Which of the following geological processes is responsible for the formation of the Indo-Ganga-Brahmaputra Plain?

Correct Answer: C

Q16.Which mountain range marks the northern boundary of the Peninsular Block?

Correct Answer: B

Q17.Which geological feature is primarily responsible for the formation of the Indo-Ganga-Brahmaputra Plain?

Correct Answer: C

Q18.Which of the following is a characteristic feature of the Northern Plains of India?

Correct Answer: C

Q19.Which of the following mountain ranges is known for having the highest peak in the Peninsular plateau?

Correct Answer: B

Q20.Which hill range is the 'Dodabeta' peak situated on?

Correct Answer: A

Q21.Which mountain range forms the northern boundary of the Peninsular Block?

Correct Answer: B

Q22.What is the approximate length of the Great Himalayan range?

Correct Answer: B

Q23.What is the primary cause of the formation of the Indo-Ganga-Brahmaputra Plain?

Correct Answer: C

Q24.Which geological division of India is known for its ancient gneisses and granites?

Correct Answer: A

Q25.Which physiographic division of India is known for its fertile alluvial soil?

Correct Answer: A

Q26.Which mountain range is known for having the highest peak in the Peninsular Plateau?