This PSEB 9th Class Social Science Notes Geography Chapter 2a India: Physiographic Units will help you in revision during exams.
PSEB 9th Class Social Science Notes Geography Chapter 2a India: Physiographic Units
→ The branch of science which studies the factors responsible for the formation of landscapes is known as Geomorphology.
→ India’s total landform is divided into plains (43%), mountains (29.3%), and plateau regions (27.7%).
→ According to’ to the surface, India can be divided into five parts:
- Himalaya mountain
- Northern Plains
- Plateau region
- Coastal plains
- Islands
→ Around1 12 crore years ago, there was a sea called ‘Tethys’ where presently Himalaya mountain is situated.
→ The highest mountain peak of the world is Mount Everest and of India is Godwin Austin (Kg).
→ Famous passes of the subcontinent are in the Himalayan region. Central Himalaya is famous for its hill stations.
→ Bhabhar, Terai, Bangar, Bhoor, etc. are different types of plains.
→ Bist Doab and Bari Doab are in India and Chaj Doab is in Pakistan.
→ The meaning of Sunderban is the forest full of Sunderi trees.
→ Plateau of Central India, Malwa Plateau, and Southern Plateau are the plateau regions of India. These are the parts of the peninsular plateau.
→ Thai ghat, Bhor ghat, and Pal ghat are the famous passes of western ghats.
→ The plateau region of eastern ghats is full of minerals.
→ Kutch, Konkan, Malabar, Coromandel, and Northern Circars are the parts of Coastal plains.
→ There are around 267 islands in the Indian island groups.
→ They can be divided into two groups-Andaman-Nicobar islands in the Bay of Bengal and the Lakshadweep islands in the Arabian Sea.
→ Malwa plateau is triangular in shape.
→ Chota Nagpur plateau is famous for minerals and is a part of the Malwa plateau.