question_answer 1)

Answer the following questions briefly    (i) What are tectonic plates?   (ii) Which continents of today were part of the Gondwana land?   (iii) What is the Bhabar?   (vi) Name of the Island group of India having coral Vindhyan   (v) Which plateaus lies between the Aravali and the Vindhyan ranges?   (iv) Name the three major divisions of the Himalayas from north to south.  

Answer:

(i)The convectional currents below the Earth's crust split the crust into a number of pieces. These pieces are called tectonic plates. e.g., Eurasia plate, Indo Australian plate etc.   (ii)The Gondwana land included India, Australia, South Africa and South America as one single land mass.   (iii)Bhabar is a narrow belt of land about 8 to 16 km wide and covered with pebbles deposited by the rivers and lying parallel to the slopes of the Shiwaliks.   (iv)The 3 major divisions of the Himalayas from North to South are as follows (a) The Great or Inner Himalayas or the Himadri. It is a continues range consisting of the highest peaks. (b) Himachal or Lesser Himalayas The range lying to the South of the Himadri is known as Himachal or Lesser Himalayas. (c) Shiwaliks The outermost range of the Himalayas is known as the Shiwaliks. These are the foothill ranges and represent the southernmost division of the Himalayas. (v)Malwa plateau lies between the Aravali and the Vindhyan ranges. (vi)Lakshadweep Islands are composed of small coral islands.