Question

Answer the following questions in about 30 words.
(i) Name three states having black soil and the crop which is mainly grown in it.
(ii) What type of soil is found in the river deltas of the eastern coast? Give three main features of this type of soil.
(iii) What steps can be taken to control soil erosion in the hilly areas?
(iv) What are the biotic and abiotic resources? Give some examples.

NCERT Class 10th Social Science (Contemporary India II) Chapter 1 Resources and Development

Answer 1

Hey Friend,

(i) Gujarat - Bajra
    Maharashtra - Pulses
    Madhya Pradesh - Wheat

(ii) Deltiac Alluvial soil is found in river deltas of eastern coast.

     Characteristics of Alluvial soil - 
     * found to a depth of 500 meters
     *Rich in potash, humus and lime.
     *Deficient in nitrogen, tends to be phosphoric.
     *Varies greatly in texture..from coarse to fine.

(iii) Methods of soil conservation in hilly areas -
      *Strip cropping 
      *Terrace farming
      *Contour ploughing and contour bunding
      *plugging gullies and ravines
      *Afforestation or reforestation

(iv) Biotic resources are natural resources obtained from the biosphere. 
      Example: Living organisms [animals and plants]

      Abiotic resources are non-living components of the environment.
      Example: Non-living components [water, air]

Hope it helps!

Answer 2

Answer:

Explanation:

(i) Maharashtra, Madhya Pradesh and Chhattisgarh are the three states where black soil is found and cotton is the main crop grown in black soil.                                                                                                            

                                                                                                                                   (ii) Alluvial Soil is found in river deltas. Three main features of this type of soil are:

It is very fertile.

It is rich in potash, phosphoric acid and lime.

It has a high water retention capacity              

                                                                                                                                  (iii) Soil erosion can be controlled in the hilly areas by:

#Terrace farming

#ploughing across contour-lines

#Growing strips of grass between the crops.

                                                                                                                                (iv) Biotic Resources: The resources which are obtained from the biosphere and have life are called Biotic Resources. For example, plants, animals, human beings, etc.

Abiotic Resources: The resources which are composed of non-living things are called Abiotic Resources. For example, soil, air, water, metals, etc.