Physical Features of India Class 9 Extra Questions and Answers Free PDF Download
FAQs on CBSE Important Questions for Class 9 Social Science Geography Physical Features of India - 2025-26
1. What are the key differences between the Western Ghats and the Eastern Ghats, which are important for exams?
The key differences between the Western and Eastern Ghats are crucial for answering questions in Class 9 exams:
- Continuity: The Western Ghats are a continuous range, while the Eastern Ghats are discontinuous and broken by rivers like the Godavari and Krishna.
- Elevation: The Western Ghats are higher in elevation (average 900-1600 metres) compared to the Eastern Ghats (average 600 metres).
- Rainfall: The Western Ghats receive heavy orographic rainfall as they face the rain-bearing monsoon winds, while the Eastern Ghats receive comparatively less rainfall.
- Slope: The Western Ghats form a steep escarpment on the western side, whereas the Eastern Ghats have a gentler slope.
2. Name the three parallel ranges of the Himalayas and state one important feature of each.
The three parallel ranges of the Himalayas, from north to south, are a frequently asked question in exams:
- The Great or Inner Himalayas (Himadri): This is the most continuous range, containing the highest peaks like Mount Everest. It is perennially snow-bound, and its core is composed of granite.
- The Lesser Himalayas (Himachal): Located south of the Himadri, this range is mainly composed of highly compressed and altered rocks. It is known for its famous hill stations like Shimla and Mussoorie.
- The Outer Himalayas (Shiwaliks): This is the outermost range, composed of unconsolidated sediments brought down by rivers. The longitudinal valleys lying between the Lesser Himalayas and the Shiwaliks are known as Duns.
3. Why are the Northern Plains of India considered a crucial region for the country's agriculture?
The Northern Plains are considered a vital agricultural region for several reasons that are important for exam answers. The plains are formed by the interplay of three major river systems—the Indus, the Ganga, and the Brahmaputra. These rivers deposit immense amounts of fertile alluvial soil over millions of years, making the land extremely productive. This, combined with a favourable climate and adequate water supply, makes it ideal for growing a variety of crops like rice, wheat, and sugarcane, supporting a dense population.
4. How do the Himalayas influence India's climate and water resources?
The Himalayas play a critical role in shaping India's climate and water systems, a concept often tested in exams. They act as a massive barrier, protecting the subcontinent from the cold, dry winds of Central Asia. Furthermore, they trap the monsoon winds, forcing them to shed their moisture as rainfall across northern India. Most importantly, the Himalayan glaciers are the source of India's major perennial rivers, like the Ganga and Yamuna, ensuring a year-round water supply.
5. How do the two main island groups of India, the Andaman & Nicobar and the Lakshadweep, differ in their geological formation?
This is a higher-order thinking question that explores geological differences. The two island groups have distinct origins:
- The Andaman and Nicobar Islands are believed to be an elevated portion of submarine mountains. They are of volcanic origin, and some islands, like Barren Island, have active volcanoes.
- The Lakshadweep Islands, on the other hand, are composed of small coral atolls. They are built up by the skeletons of tiny marine animals called polyps on a submarine ridge.
Understanding this distinction is key to explaining their unique ecosystems and topography.
6. Explain with examples how India's diverse physical features lead to varied economic activities across different regions.
India's physical diversity directly shapes its economic landscape, a crucial concept for application-based questions. For instance:
- The fertile Northern Plains support intensive agriculture, making it the 'granary of India'.
- The Peninsular Plateau is a storehouse of minerals like coal, iron ore, and manganese, which has led to the development of mining and heavy industries in states like Jharkhand and Chhattisgarh.
- The long coastline supports fishing, port activities, and trade.
- The scenic beauty of the Himalayas and the Western Ghats promotes tourism and related service industries.
7. What are 'Bhabar' and 'Terai' as per the divisions of the Northern Plains? What is their significance?
Bhabar and Terai are important sub-regions of the Northern Plains often asked in exams.
- The Bhabar is a narrow belt, about 8 to 16 km in width, lying parallel to the slopes of the Shiwaliks. In this region, rivers deposit pebbles, and streams often disappear underground. It is not suitable for agriculture.
- South of the Bhabar lies the Terai belt. Here, the streams and rivers re-emerge, creating a wet, swampy, and marshy region. Historically, this region was thickly forested and rich in wildlife. Today, much of it has been cleared for agriculture.
8. Why is the Peninsular Plateau considered a 'storehouse of minerals'?
The Peninsular Plateau's reputation as a storehouse of minerals stems from its geological history. It is one of the oldest landmasses, composed of ancient crystalline, igneous, and metamorphic rocks. These rock formations are extremely rich in large reserves of metallic minerals like iron ore, manganese, and bauxite, as well as non-metallic minerals like mica. The Gondwana rock systems within the plateau also hold nearly all of India's major coal deposits.
9. Distinguish between the Central Highlands and the Deccan Plateau, the two main divisions of the Peninsular Plateau.
This is a classic distinction question for Class 9 exams. The two divisions of the Peninsular Plateau are:
- The Central Highlands: This part lies to the north of the Narmada river. It is wider in the west but narrower in the east. The rivers draining this region, such as the Chambal and Betwa, flow from southwest to northeast, indicating the slope.
- The Deccan Plateau: This is a triangular landmass that lies to the south of the Narmada river. It is higher in the west and slopes gently eastwards. Its western and eastern edges are marked by the Western Ghats and Eastern Ghats, respectively.
10. What is a common misconception about the Indian Desert? Explain its key features as per the Class 9 syllabus.
A common misconception is that the Indian Desert, or Thar Desert, is a completely barren, lifeless sandy wasteland. While it is an arid land with low rainfall (below 150 mm per year), it has a unique ecosystem and distinct features. Key features important for exams include:
- It has an arid climate with sparse vegetation.
- Barchans (crescent-shaped dunes) cover large areas, but longitudinal dunes become more prominent near the Indo-Pakistan boundary.
- Streams appear only during the rainy season and soon disappear into the sand as they do not have enough water to reach the sea. The Luni is the only large river in this region.
- The region shows evidence of human adaptation to harsh conditions through unique housing and water conservation methods.























