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Which of the following statements about alluvial soils (mainly found in Northern India) is/are correct? 1. It has been deposited mainly by the peninsular river system. 2. It cannot be found in drier states such as Rajasthan and Gujarat. 3. Alluvial soil with fine particles is generally more fertile than with coarser particles. 4. It is always alkaline in nature.

Which of the following statements about alluvial soils (mainly found in Northern India) is/are correct? 1. It has been deposited mainly by the peninsular river system. 2. It cannot be found in drier states such as Rajasthan and Gujarat. 3. Alluvial soil with fine particles is generally more fertile than with coarser particles. 4. It is always alkaline in nature. Correct Answer 3 only

The correct answer is 3 only.

Important Points

  • It is deposited mainly by the three important Himalayan river systems. So, statement 1 is NOT correct.
  • It can be found in Rajasthan and Gujarat, and eastern coastal plains as well. So, statement 2 is NOT correct.
  • Soils in the drier areas are more alkaline and can be productive after proper treatment and irrigation. So, statement 4 is NOT correct as alkalinity is not always the case. For e.g. Brahmaputra alluvium is acidic in nature.
  • Apart from the size of their grains or components, soils are also described on the basis of their age.
  • According to their age alluvial soils can be classified as old alluvial (Bangar) and new alluvial (Khadar).
  • The Bangar soil has a higher concentration of Kanker nodules than the Khadar.
  • It has more fine particles and is more fertile than the Bangar.
  • Alluvial soils as a whole are very fertile. So, statement 3 is correct.

Related Questions

Consider the following statements and state what is not true of the Alluvial Soils? (a) Alluvial soils are the most widely spread soils. (b) Alluvial soils as a whole are very fertile. (c) On the basis of their age they are classified into two - old: Bangar and new: khadar. (d) Khadar soils are more fertile than Bangar (e) Alluvial soils contain an adequate proportion of potash, phosphoric acid and lime (f) Alluvial soils are ideal for sugarcane, paddy, wheat and pulses. 
Consider the following statements about alluvial soils. 1. One of the most important and fertile soils of India they support the growth of a wide variety of crops such as rice, wheat, sugarcane, cotton, jute, potato and vegetables. 2. Alluvium are fine particles of rock materials carried in suspension and later deposited by the river in its bed and bank. 3. Alluvial soils are not formed by the deposition of silt by the rivers. Which of the statements given above is/are correct?
Compare the Himalayan river with the Peninsular river based on the following comparisons : 1. Most of the Himalayan rivers are perennial, whereas most of the Peninsular rivers are rainfed. 2. The gradient of the Himalayan river is steeper than the Peninsular river. 3. The Peninsular river causes more erosion on its way in comparison to the Himalayan river. Choose the correct answer from the options given below.
Consider the following about the Peninsular River System. 1. The Peninsular drainage system is older than the Himalayan one. 2. The Chambal, the Sind, the Betwa, the Ken, the Son, originating in the northern part of the Peninsula belong to the Ganga river system. 3. The Narmada and the Tapi are flowing through the rift valley. 4. The Godavari is the largest river in the peninsular river system. Which of the above statements is/are correct?
Consider the following statements and choose the correct answer:
1. Soil gets heat energy from different sources such as solar radiation, decomposing organic matter and heat formed in the interior of earth
2. The temperature of soil is not affected by its colour and altitude of the land
3. Black soils absorb more heat than white soils
4. Sandy soils absorb more heat and radiate it out quickly at night than clay or loam soils
With reference to the Himalayan Rivers and the Peninsular Rivers, consider the following statements: 1. The Himalayan Rivers are examples of consequent drainage while the Peninsular rivers are examples of antecedent drainage. 2. The Himalayan rivers flow through deep V-shaped valleys while the Peninsular rivers flow in comparatively shallow valleys. 3. The Himalayan rivers are perennial in nature while the Peninsular rivers are seasonal or non-perennial. Which of the statements given above is not correct?
Consider the following statement with respect to Himalayan rivers and the peninsular rivers. 1. Himalayan rivers are old and mature while peninsular rivers are youthful in the activity. 2. Himalayan rivers are perennial while peninsular rivers are seasonal in nature. 3. Himalayan rivers show meandering activity in the plains but peninsular rivers do not. Which of the statements given above is/are correct?
Consider the following statements regarding laterite soils of India: 1. Laterite soils are generally red in color. 2. Laterite soils are rich in nitrogen and potash. 3. Laterite soils are well developed in Rajasthan and UP. 4. Tapioca and cashew nuts grow well in this soil. Which of the statements given above is /are correct?
In the question given below, there are two statements marked as Assertion (A) and Reason (R). Read both the statements carefully and choose the correct alternative from the following.          Assertion (A): Cotton is grown in alluvial soils. Reason (R): Alluvial soils are very fertile.
Which of the following are true in respect of alluvial soil ? I. Generally confined to river basins II. It has been deposited by rivers III. It is rich in phosphorus and poor in potash IV. It is the most fertile soil