(3) Give a detailed account of the structure of the earth.
The structure of the Earth consists of several layers: the inner core, outer core, mantle, and crust. The crust, where we live, floats over the semi-liquid mantle. Heat generated from the interior drives convection currents, causing tectonic plate movements, which lead to geological phenomena like earthquakes, volcanoes, and mountain formations. India’s physiography is a result of such geological processes.
4. Select the correct option of the following questions and write answers :
(1) Through which state of India, the standard meridian does not pass ?
(A) Uttar Pradesh
(B) Chhattisgarh
(C) Madhya Pradesh
(D) Tamil Nadu
(2) North of India: China, To the north-west of India :
(A) Bangladesh
(B) Pakistan
(C) Sri Lanka
(D) Nepal
(3) Arrange the following states in order from north to south : Uttarakhand, Kerala, Madhya Pradesh, Andhra Pradesh, Delhi
(A) Uttarakhand, Delhi, Madhya Pradesh, Andhra Pradesh, Kerala
(B) Kerala, Andhra Pradesh, Madhya Pradesh, Delhi, Uttarakhand
(C) Andhra Pradesh, Madhya Pradesh, Uttarakhand, Delhi, Kerala
(D) Kerala, Andhra Pradesh, Delhi, Madhya Pradesh, Uttarakhand
(4) Which of the following countries is larger in area than India ?
(A) Canada
(B) England
(C) Pakistan
(D) Thailand
(5) Which of the following pairs is incorrect as a neighbour of India?
(A) Afghanistan – North-West
(B) Nepal – North-East
(C) China North
(D) Bangladesh – West
GSEB Class 9 Social Science Chapter 13 Solution Additional QA
Q: What is the Tropic of Cancer?
A: The Tropic of Cancer is an imaginary line that runs across the Earth. It’s located about 23 degrees north of the equator.
Q: Why is India’s location important?
A: India’s location is important because it’s in a strategic place in the eastern hemisphere. It’s close to major trade routes and has a long coastline, making trade and communication with other countries easier.
Q: How many tectonic plates are there?
A: There are seven major tectonic plates that make up the Earth’s surface.
Q: What happened to Indira Point?
A: Indira Point, which was the southernmost point of India, got submerged under the ocean in 2004 due to a tsunami.
Q: What is the physiography of India like?
A: The physiography of India is diverse, with mountains in the north, plains in the middle, and coastal areas on both sides. It has a variety of landforms due to geological processes like tectonic movements and erosion.
Q: Why did the opening of the Suez Canal benefit India?
A: The opening of the Suez Canal reduced the distance between India and Europe by about 7000 kilometers. This made trade between India and European countries faster and more convenient.
Q: What are some neighboring countries of India?
A: Some neighboring countries of India include Pakistan, China, Nepal, Bangladesh, Sri Lanka, and the Maldives.
