02: Maps Of India Class 10 Geography : Icse-x-geography

with Solutions - page 3

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#6-i
Where does the Malwa Plateau lie?
Ans : The Malwa Plateau lies in the north-west part of the Plateau region.

#6-ii
How is it formed?
Ans : This upland region is formed by sand stone, shells and limestone. It is drained by a number of north-flowing streams, like Chambal, Betwa and their tributaries.

Qstn #7
How has the lava-flow rocks of Deccan Plateau changed into fertile black soils?
Ans : The Deccan Plateau region is built up by the lava-flow rocks, which have been changed into fertile black soils because of continuous weathering through ages. The region of black soil is very suitable for cultivation of cotton plants.

Qstn #8
What is the importance of the Southern Plateau Region?
Ans : It is geologically very old and stable land and therefore least affected by the tectonic disturbances or by tremors of the earth. It is a storehouse of many mineral deposits like coal, iron-ore, manganese ore, mica, bauxite and many other minerals are found in this Plateau region.

Qstn #9
What is the extent of eastern coastal strip?
Ans : The east coastal strip extends from the mouth of the river Ganga to Cape Comorin. It lies between the Eastern Ghats and the Bay of Bengal.

Qstn #10
What is the extent of western coastal strip?
Ans : The west coast strip extends from Gulf of Kutch in the north to Cape Comorin (Kanyakumari) in the South. It lies between the Western Ghats and the Arabian Sea.
SECTION E

Qstn #11
What is the importance of coastal plains?
Ans : Both eastern and western coastal plains are favourable regions for agricultural purposes. They enjoy equable temperature condition throughout the year and as such they are suitable regions for human habitation. These plains have great facilities of good ports and harbours, also contribute greatly to the development of trade and commerce both internal and external in India.

Qstn #12
What are the salient characteristics of Shivaliks?
Ans : The Shivaliks, the southernmost range of the Himalayas, are also known as the outer Himalayas. This range is made of unconsolidated river deposits. It is more prominent in its western parts than the eastern parts of the Himalayas. This range is prone to landslides and earthquakes. The problem of soil erosion is worst here due to indiscriminate felling of trees.

Qstn #13
What do you understand by ‘Purvanchal’?
Ans : Purvanchal is a name of the mountains located on the North-eastern part of India. These mountains consist of Patkoi Bam and Naga hills in the North, Garo, Khasi and Jaintia lie in the centre and the Mizo and Lushai hills are in the south.

#14-i
Define Coral Islands and Volcanic Islands.
Ans : Coral Islands: When Coral polyps die, their skeletons turn into large masses of white calcium carbonate, giving rise to white sands. Lakshadweep is coral island.
Volcanic Islands: Many of the islands of the Andaman and Nicobar are volcanic in nature.

#14-ii
Define Lagoons.
Ans : Lagoons are salt water lakes which are almost separated from the Sea by the formation of sandbars along the coast.

Qstn #1
Name the rivers, falling in Arabian Sea and Bay of Bengal.
Ans : Rivers falling into the Arabian Sea: The Narmada and the Tapti rise near the eastern extremity of the Satpura hills, flow westward and fall into the Gulf of Cambay. These rivers do not form any deltas because the tides wash away all the alluvium that the rivers bring. During flood, these rivers are navigable. Their chief use is that railways have been built in their valleys.
Rivers falling into the Bay of Bengal: The Mahanadi rises in the hills of Madhya Pradesh, while the Godavari, the Krishna and the Cauvery rise in the Western Ghats and flowing eastward fall into the Bay of Bengal. All these rivers are broken by rapids and hence are not useful for navigation. The deltas of these rivers are very fertile and are irrigated by the canals taken from these rivers.