Our Country India Question Answers: NCERT Class 6 Social Science - The Earth Our Habitat

(a) The major physical divisions of India are:

1. The Northern Himalayas
2. The Northern Plains
3. The Great Indian Deserts
4. The Peninsular Plateau
5. The Coastal Plains
6. The Island

(b) India shares its land boundaries with seven countries, these are:

1. Afghanistan
2. Pakistan
3. Tibet
4. Nepal
5. Bhutan
6. Bangladesh
7. Myanmar 

(c) Narmada and Tapi rivers fall into Arabian Sea.

(d) The delta formed by the Ganga and the Brahmaputra is called Sunderban delta.

(e) 1. There are 28 states and 8 union territories in India.

2. Punjab and Haryana have a common capital Chandigarh.

3. Andhra Pradesh and Telangana have a common capital Hyderabad.

(f) A large number of people lives in Northern Plains because:

1. They are generally levelled and flat, so it is easy to build houses, roads and railways.
2. These are formed by the alluvial deposits laid down by river which provides fertile land for cultivation.

(g) Lakshadweep is known as coral Island because these are formed by the deposits of corals.

Coral Islands are formed, when the living polyps die, their skeletons are left. Other polyps grow on the top of the hard skeleton which grows higher and higher.

(a) (i) Shiwaliks

Himadri is the highest range of Himalayas. Himachal is the middle Himalaya and Shiwaliks are the lesser Himalayas or we can say lowest part of Himalayas.

(b) (ii) Western Ghats

Sahyadris or the Western Ghats are the chain of mountains that marks the western edge of the Deccan region.

(c) (ii) India and Sri Lanka

Palk Strait lies between India and Sri Lanka.

(d) (ii) Lakshadweep Islands

Lakshadweep Islands lies in the Arabian Sea. It is one of the Union territories of the India and it is also known as Coral Island.

(e) (i) Aravalli hills

Aravalli range is the oldest mountain range in India. It lies in the northwest part of the country. It passes through three states.  

(a) 3.28 million sq.km

The area of India is about 3.28 million sq.km. The north to south extent of India is Kashmir to Kanyakumari and the east to west extent of India is from Arunachal Pradesh to The Rann of Kutch.

(b) Himadri

Himadri are the greater Himalayas. Himadri is the highest mountain range of the Himalayas.

(c) Rajasthan

Rajasthan is the largest state of the India in terms of area.

(d) Arabian

Arabia sea is located at west of the India. Mainly two rivers flows into the Arabian Sea: Narmada and Tapi. 

(e) Tropic of Cancer

Tropic of Cancer (23½◦N) runs almost through halfway of the country. It passes usually through 8 states. It divides the India almost into two equal half parts.