- Earth's internal processes include tectonic movements, uplift, earthquakes and volcanism.
- Weathering breaks down rock in place; erosion transports material.
- Rivers erode, transport and deposit sediment, shaping valleys and floodplains.
- Wind, glaciers and waves also shape landscapes over long periods.
- Landform change depends on rock, climate, energy, time and human activity.
Use these notes alongside your current textbook. Check important formulas, worked answers and syllabus coverage with your teacher or official learning material.
Shaping of the Earth's Surface
Class 9 NCERT Understanding Society: India and Beyond, 2026–27, Part 1 Chapter 2 (Geography). Original introductory learning guide, not a reproduction of the full textbook or its exercises.
Learning objectives
Identify major concepts, interpret evidence, compare perspectives and apply ideas to everyday situations.
Core concept 1
Earth's internal processes include tectonic movements, uplift, earthquakes and volcanism.
Understanding check
Explain this idea in your own words and provide one relevant example.
Core concept 2
Weathering breaks down rock in place; erosion transports material.
Understanding check
Explain this idea in your own words and provide one relevant example.
Core concept 3
Rivers erode, transport and deposit sediment, shaping valleys and floodplains.
Understanding check
Explain this idea in your own words and provide one relevant example.
Core concept 4
Wind, glaciers and waves also shape landscapes over long periods.
Understanding check
Explain this idea in your own words and provide one relevant example.
Core concept 5
Landform change depends on rock, climate, energy, time and human activity.
Understanding check
Explain this idea in your own words and provide one relevant example.
Original practice questions with model answers
- Question 1: Explain the following key concept and its significance.
Model answer: Earth's internal processes include tectonic movements, uplift, earthquakes and volcanism.
- Question 2: Explain the following key concept and its significance.
Model answer: Weathering breaks down rock in place; erosion transports material.
- Question 3: Explain the following key concept and its significance.
Model answer: Rivers erode, transport and deposit sediment, shaping valleys and floodplains.
- Question 4: Explain the following key concept and its significance.
Model answer: Wind, glaciers and waves also shape landscapes over long periods.
- Question 5: Explain the following key concept and its significance.
Model answer: Landform change depends on rock, climate, energy, time and human activity.
Application tasks
- Compare two related ideas using a table.
- Explain a local example using evidence.
- Identify one limitation of a source or simplified model.
FAQs
What is key idea 1 in Shaping of the Earth's Surface?
Earth's internal processes include tectonic movements, uplift, earthquakes and volcanism.
What is key idea 2 in Shaping of the Earth's Surface?
Weathering breaks down rock in place; erosion transports material.
What is key idea 3 in Shaping of the Earth's Surface?
Rivers erode, transport and deposit sediment, shaping valleys and floodplains.
What is key idea 4 in Shaping of the Earth's Surface?
Wind, glaciers and waves also shape landscapes over long periods.
What is key idea 5 in Shaping of the Earth's Surface?
Landform change depends on rock, climate, energy, time and human activity.
Revision
Review definitions, examples, evidence and cause-and-effect relationships. Consult the official NCERT chapter for all activities, maps, images and numbered exercises.
Source: NCERT ePathshala.
