SOILS AND NATURAL VEGETATION
NATURAL VEGETATION INDIA
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
I and II
|
|
|
III and IV
|
|
|
I, II and IV
|
|
|
I, II and III
|
Detailed explanation-1: -Explanation : The following that are true in respect of alluvial soil are that it is generally confined to river basins, it has been deposited by rivers and it is the most fertile soil.
Detailed explanation-2: -Alluvial soil are mostly confined to river basin and costal plain as river tends to erode the soils and deposit the heavy fertile soil near river and it’s adjacent areas.
Detailed explanation-3: -Alluvial soils are widespread soils in India mostly in Northern Plains and River valleys. These soils cover 40% of the total area of the country. Hence statement a is correct. These soils are depositional soils transported and deposited by rivers and streams.
Detailed explanation-4: -Alluvial soil is formed when silt, sand, and clay are deposited on flat lands or basins. This soil contains a large amount of minerals like potash, phosphoric acid, and lime, which makes it suitable for agriculture.
Detailed explanation-5: -It is formed by the deposition of the river load as it flows from its upper to its lower course. It is light and porous, therefore easily tillable. It is a fertile soil as it is rich in minerals, especially potash and lime. More items