{"id":18098,"date":"2021-02-06T12:33:18","date_gmt":"2021-02-06T07:03:18","guid":{"rendered":"https:\/\/ncertsolutions.guru\/?p=18098"},"modified":"2021-02-06T12:33:18","modified_gmt":"2021-02-06T07:03:18","slug":"ncert-solutions-for-class-11-geography-chapter-6-part-b","status":"publish","type":"post","link":"https:\/\/ncertsolutions.guru\/ncert-solutions-for-class-11-geography-chapter-6-part-b\/","title":{"rendered":"NCERT Solutions for Class 11 Geography Chapter 6 Soils"},"content":{"rendered":"

Detailed, Step-by-Step NCERT Solutions for Class 11 Geography<\/a> Chapter 6 Soils Questions and Answers were solved by Expert Teachers as per NCERT (CBSE) Book guidelines covering each topic in chapter to ensure complete preparation.<\/p>\n

Soils NCERT Solutions for Class 11 Geography Chapter 6<\/h2>\n

Soils Questions and Answers <\/span>Class 11 Geography Chapter 6<\/h3>\n

Question 1.
\nChoose the right answer from the four alternatives given below :
\n(i) Which one of the following is the most widespread and most productive category of soil?
\n(a) Alluvial Soil
\n(b) Laterite Soil
\n(c) Black Soil
\n(d) Forest Soil
\nAnswer:
\n(a) Alluvial Soil<\/p>\n

\"NCERT<\/p>\n

(ii) \u2018Regur Soil\u2019 is another name for the ……….
\n(a) Saline Soil
\n(b) Arid Soil
\n(c) Black Soil
\n(d) Laterite Soil
\nAnswer:
\n(c) Black Soil<\/p>\n

(iii) Which one of the following is the main reason for the loss of the top soil in India?
\n(a) Wind erosion
\n(b) Water erosion
\n(c) Excessive leaching
\n(d) None of these
\nAnswer:
\n(b) Water erosion<\/p>\n

(iv) Arable land in the irrigated zones of India is turning saline due to which of the following reasons?
\n(a) Addition of gypsum
\n(b) Overgrazing
\n(c) Over irrigation
\n(d) Use of fertilisers
\nAnswer:
\n(c) Over irrigation<\/p>\n

Question 2.
\nAnswer the following questions in about 30 words :
\n(i) What is soil?
\nAnswer:
\nSoil is the mixture of rock debris and organic materials which develop on the earth\u2019s surface.<\/p>\n

(ii) What are the main factors responsible for the formation of soil?
\nAnswer:
\nThe major factors affecting the formation of soil are relief, parent material, climate, vegetation and other life-forms and time. Besides these, human activities also influence it to a large extent.<\/p>\n

(iii) Mention the three horizons of a soil profile.
\nAnswer:
\n(1) \u2018Horizon A\u2019 is the topmost zone, where organic materials have got incorporated with the mineral matter, nutrients and water, which are necessary for the growth of plants.<\/p>\n

(2) \u2018Horizon B\u2019 is a transition zone between the \u2018horizon A\u2019 and \u2018horizon r C\u2019, and contains matter derived from below as well as from above.<\/p>\n

\"NCERT<\/p>\n

(3)\u2018Horizo C\u2019 is composed of loose parent material. This layer is the first stage in the soil foundation process and eventually forms the above two layers.<\/p>\n

(iv) What is soil degradation?
\nAnswer:
\nIn a broad sense, soil degradation can be defined as the decline in soil fertility, when the nutritional status declines and depth of the soil goes down due to erosion and misuse.<\/p>\n

(v) What is the difference between Khadar and Bhangarl
\nAnswer:
\nKhadar is the new alluvium soil and is deposited by floods annually, which enriches the soil by depositing fine silts.
\nBhangar represents a system of older alluvium soil, deposited away from the flood plains.<\/p>\n

Question 3.
\nAnswer the following questions in not more than 125 words :
\n(i) What are black soils? Describe their formation and characteristics.
\nAnswer:
\nThe black soil is very deep. These soils are also known as the? \u2018Regur Soil\u2019 or the \u2018Black Cotton Soil\u2019. The black soils are generally I clayey, deep and impermeable. They swell and become sticky when wet and shrink when dried. So, during the dry season, these soils develop wide cracks.<\/p>\n

Thus, there occurs a kind of self ploughing\u2019. Because of this character of slow absorption and loss of moisture, the black soil retains the moisture for a very long time, which helps the crops, especially the rainfed ones, to sustain even during the dry season, Chemically, the black soils are rich in lime, iron, magnesia and alumina. They also contain potash. But they lack in phosphorous, nitrogen and organic matter. The colour ofthe soil ranges from deep black to grey.<\/p>\n

(ii) What is soil conservation? Suggest some measures to conserve soil.
\nAnswer:
\nSoil conservation is a methodology to maintain soil fertility, prevent soil erosion and exhaustion, and improve the degraded condition of the soil<\/p>\n

\"NCERT<\/p>\n

Soil conservation is necessary. The important measures to conserve soil are as follows :<\/p>\n